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Finding the Fourth Proportional to 74,101.60, 102,260.34 and 43,901.87

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Solution

The fourth proportional to 74,101.60, 102,260.34 and 43,901.87 is: 60,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,101.60 : 102,260.34 = 43,901.87 : x
  2. Step 2: Convert to fraction form
    74,101.60/102,260.34 = 43,901.87/x
  3. Step 3: Cross multiply
    74,101.60x = 102,260.34 × 43,901.87
  4. Step 4: Simplify right side
    74,101.60x = 4,489,419,641.53
  5. Step 5: Solve for x
    x = 4,489,419,641.53/74,101.60
  6. Step 6: Final answer
    x = 60,584.65

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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.