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Finding the Fourth Proportional to 72,010.20, 107,918.10 and 48,250.20

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Solution

The fourth proportional to 72,010.20, 107,918.10 and 48,250.20 is: 72,310.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,010.20 : 107,918.10 = 48,250.20 : x
  2. Step 2: Convert to fraction form
    72,010.20/107,918.10 = 48,250.20/x
  3. Step 3: Cross multiply
    72,010.20x = 107,918.10 × 48,250.20
  4. Step 4: Simplify right side
    72,010.20x = 5,207,069,908.62
  5. Step 5: Solve for x
    x = 5,207,069,908.62/72,010.20
  6. Step 6: Final answer
    x = 72,310.17

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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.