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Finding the Fourth Proportional to 92,147.43, 127,167.54 and 51,863.80

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Solution

The fourth proportional to 92,147.43, 127,167.54 and 51,863.80 is: 71,574.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,147.43 : 127,167.54 = 51,863.80 : x
  2. Step 2: Convert to fraction form
    92,147.43/127,167.54 = 51,863.80/x
  3. Step 3: Cross multiply
    92,147.43x = 127,167.54 × 51,863.80
  4. Step 4: Simplify right side
    92,147.43x = 6,595,391,861.05
  5. Step 5: Solve for x
    x = 6,595,391,861.05/92,147.43
  6. Step 6: Final answer
    x = 71,574.35

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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.