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Finding the Fourth Proportional to 109,892.76, 151,651.08 and 62,145.96

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Solution

The fourth proportional to 109,892.76, 151,651.08 and 62,145.96 is: 85,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,892.76 : 151,651.08 = 62,145.96 : x
  2. Step 2: Convert to fraction form
    109,892.76/151,651.08 = 62,145.96/x
  3. Step 3: Cross multiply
    109,892.76x = 151,651.08 × 62,145.96
  4. Step 4: Simplify right side
    109,892.76x = 9,424,501,951.64
  5. Step 5: Solve for x
    x = 9,424,501,951.64/109,892.76
  6. Step 6: Final answer
    x = 85,760.90

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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.