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Finding the Fourth Proportional to 73,374.72, 101,247.21 and 43,142.55

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Solution

The fourth proportional to 73,374.72, 101,247.21 and 43,142.55 is: 59,530.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,374.72 : 101,247.21 = 43,142.55 : x
  2. Step 2: Convert to fraction form
    73,374.72/101,247.21 = 43,142.55/x
  3. Step 3: Cross multiply
    73,374.72x = 101,247.21 × 43,142.55
  4. Step 4: Simplify right side
    73,374.72x = 4,368,062,819.79
  5. Step 5: Solve for x
    x = 4,368,062,819.79/73,374.72
  6. Step 6: Final answer
    x = 59,530.90

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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.