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Finding the Fourth Proportional to 74,592,337.20, 111,888,505.80 and 54,436,945.20

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Solution

The fourth proportional to 74,592,337.20, 111,888,505.80 and 54,436,945.20 is: 81,655,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,592,337.20 : 111,888,505.80 = 54,436,945.20 : x
  2. Step 2: Convert to fraction form
    74,592,337.20/111,888,505.80 = 54,436,945.20/x
  3. Step 3: Cross multiply
    74,592,337.20x = 111,888,505.80 × 54,436,945.20
  4. Step 4: Simplify right side
    74,592,337.20x = 6,090,868,458,744,482
  5. Step 5: Solve for x
    x = 6,090,868,458,744,482/74,592,337.20
  6. Step 6: Final answer
    x = 81,655,417.80

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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.