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Finding the Fourth Proportional to 106,432.32, 146,877.60 and 58,687.38

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Solution

The fourth proportional to 106,432.32, 146,877.60 and 58,687.38 is: 80,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,432.32 : 146,877.60 = 58,687.38 : x
  2. Step 2: Convert to fraction form
    106,432.32/146,877.60 = 58,687.38/x
  3. Step 3: Cross multiply
    106,432.32x = 146,877.60 × 58,687.38
  4. Step 4: Simplify right side
    106,432.32x = 8,619,861,524.69
  5. Step 5: Solve for x
    x = 8,619,861,524.69/106,432.32
  6. Step 6: Final answer
    x = 80,989.13

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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.