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Finding the Fourth Proportional to 73,691.28, 101,678.76 and 43,475.04

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Solution

The fourth proportional to 73,691.28, 101,678.76 and 43,475.04 is: 59,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,691.28 : 101,678.76 = 43,475.04 : x
  2. Step 2: Convert to fraction form
    73,691.28/101,678.76 = 43,475.04/x
  3. Step 3: Cross multiply
    73,691.28x = 101,678.76 × 43,475.04
  4. Step 4: Simplify right side
    73,691.28x = 4,420,488,158.15
  5. Step 5: Solve for x
    x = 4,420,488,158.15/73,691.28
  6. Step 6: Final answer
    x = 59,986.58

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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.