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Finding the Fourth Proportional to 67,145,412.20, 100,718,118.30 and 67,145,412.20

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Solution

The fourth proportional to 67,145,412.20, 100,718,118.30 and 67,145,412.20 is: 100,718,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,145,412.20 : 100,718,118.30 = 67,145,412.20 : x
  2. Step 2: Convert to fraction form
    67,145,412.20/100,718,118.30 = 67,145,412.20/x
  3. Step 3: Cross multiply
    67,145,412.20x = 100,718,118.30 × 67,145,412.20
  4. Step 4: Simplify right side
    67,145,412.20x = 6,762,759,569,261,863
  5. Step 5: Solve for x
    x = 6,762,759,569,261,863/67,145,412.20
  6. Step 6: Final answer
    x = 100,718,118.30

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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.