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Finding the Fourth Proportional to 121,264.34, 167,349.96 and 67,549.39

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Solution

The fourth proportional to 121,264.34, 167,349.96 and 67,549.39 is: 93,221.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,264.34 : 167,349.96 = 67,549.39 : x
  2. Step 2: Convert to fraction form
    121,264.34/167,349.96 = 67,549.39/x
  3. Step 3: Cross multiply
    121,264.34x = 167,349.96 × 67,549.39
  4. Step 4: Simplify right side
    121,264.34x = 11,304,387,296.15
  5. Step 5: Solve for x
    x = 11,304,387,296.15/121,264.34
  6. Step 6: Final answer
    x = 93,221.04

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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.