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Finding the Fourth Proportional to 67,257,906.90, 100,886,860.35 and 50,995,812.30

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Solution

The fourth proportional to 67,257,906.90, 100,886,860.35 and 50,995,812.30 is: 76,493,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,257,906.90 : 100,886,860.35 = 50,995,812.30 : x
  2. Step 2: Convert to fraction form
    67,257,906.90/100,886,860.35 = 50,995,812.30/x
  3. Step 3: Cross multiply
    67,257,906.90x = 100,886,860.35 × 50,995,812.30
  4. Step 4: Simplify right side
    67,257,906.90x = 5,144,807,393,944,912
  5. Step 5: Solve for x
    x = 5,144,807,393,944,912/67,257,906.90
  6. Step 6: Final answer
    x = 76,493,718.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.