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Finding the Fourth Proportional to 74,697.78, 103,037.60 and 44,462.90

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Solution

The fourth proportional to 74,697.78, 103,037.60 and 44,462.90 is: 61,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,697.78 : 103,037.60 = 44,462.90 : x
  2. Step 2: Convert to fraction form
    74,697.78/103,037.60 = 44,462.90/x
  3. Step 3: Cross multiply
    74,697.78x = 103,037.60 × 44,462.90
  4. Step 4: Simplify right side
    74,697.78x = 4,581,350,505.04
  5. Step 5: Solve for x
    x = 4,581,350,505.04/74,697.78
  6. Step 6: Final answer
    x = 61,331.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.