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Finding the Fourth Proportional to 92,372.87, 127,472.03 and 52,086.31

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Solution

The fourth proportional to 92,372.87, 127,472.03 and 52,086.31 is: 71,877.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,372.87 : 127,472.03 = 52,086.31 : x
  2. Step 2: Convert to fraction form
    92,372.87/127,472.03 = 52,086.31/x
  3. Step 3: Cross multiply
    92,372.87x = 127,472.03 × 52,086.31
  4. Step 4: Simplify right side
    92,372.87x = 6,639,547,287.12
  5. Step 5: Solve for x
    x = 6,639,547,287.12/92,372.87
  6. Step 6: Final answer
    x = 71,877.67

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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.