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Finding the Fourth Proportional to 157,167.90, 216,964.80 and 92,616.78

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Solution

The fourth proportional to 157,167.90, 216,964.80 and 92,616.78 is: 127,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,167.90 : 216,964.80 = 92,616.78 : x
  2. Step 2: Convert to fraction form
    157,167.90/216,964.80 = 92,616.78/x
  3. Step 3: Cross multiply
    157,167.90x = 216,964.80 × 92,616.78
  4. Step 4: Simplify right side
    157,167.90x = 20,094,581,149.34
  5. Step 5: Solve for x
    x = 20,094,581,149.34/157,167.90
  6. Step 6: Final answer
    x = 127,854.23

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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.