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Finding the Fourth Proportional to 121,350.80, 167,443.80 and 67,624.04

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Solution

The fourth proportional to 121,350.80, 167,443.80 and 67,624.04 is: 93,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,350.80 : 167,443.80 = 67,624.04 : x
  2. Step 2: Convert to fraction form
    121,350.80/167,443.80 = 67,624.04/x
  3. Step 3: Cross multiply
    121,350.80x = 167,443.80 × 67,624.04
  4. Step 4: Simplify right side
    121,350.80x = 11,323,226,228.95
  5. Step 5: Solve for x
    x = 11,323,226,228.95/121,350.80
  6. Step 6: Final answer
    x = 93,309.86

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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.