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Finding the Fourth Proportional to 73,966.68, 102,081.16 and 43,761.72

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Solution

The fourth proportional to 73,966.68, 102,081.16 and 43,761.72 is: 60,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,966.68 : 102,081.16 = 43,761.72 : x
  2. Step 2: Convert to fraction form
    73,966.68/102,081.16 = 43,761.72/x
  3. Step 3: Cross multiply
    73,966.68x = 102,081.16 × 43,761.72
  4. Step 4: Simplify right side
    73,966.68x = 4,467,247,141.20
  5. Step 5: Solve for x
    x = 4,467,247,141.20/73,966.68
  6. Step 6: Final answer
    x = 60,395.40

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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.