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Finding the Fourth Proportional to 121,522.73, 167,764.42 and 88,780.42

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Solution

The fourth proportional to 121,522.73, 167,764.42 and 88,780.42 is: 122,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,522.73 : 167,764.42 = 88,780.42 : x
  2. Step 2: Convert to fraction form
    121,522.73/167,764.42 = 88,780.42/x
  3. Step 3: Cross multiply
    121,522.73x = 167,764.42 × 88,780.42
  4. Step 4: Simplify right side
    121,522.73x = 14,894,195,687.63
  5. Step 5: Solve for x
    x = 14,894,195,687.63/121,522.73
  6. Step 6: Final answer
    x = 122,563.05

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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.