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Finding the Fourth Proportional to 157,354.34, 217,167.45 and 88,443.90

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Solution

The fourth proportional to 157,354.34, 217,167.45 and 88,443.90 is: 122,062.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,354.34 : 217,167.45 = 88,443.90 : x
  2. Step 2: Convert to fraction form
    157,354.34/217,167.45 = 88,443.90/x
  3. Step 3: Cross multiply
    157,354.34x = 217,167.45 × 88,443.90
  4. Step 4: Simplify right side
    157,354.34x = 19,207,137,087.91
  5. Step 5: Solve for x
    x = 19,207,137,087.91/157,354.34
  6. Step 6: Final answer
    x = 122,062.96

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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.