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Finding the Fourth Proportional to 121,470.23, 167,626.97 and 67,753.87

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Solution

The fourth proportional to 121,470.23, 167,626.97 and 67,753.87 is: 93,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,470.23 : 167,626.97 = 67,753.87 : x
  2. Step 2: Convert to fraction form
    121,470.23/167,626.97 = 67,753.87/x
  3. Step 3: Cross multiply
    121,470.23x = 167,626.97 × 67,753.87
  4. Step 4: Simplify right side
    121,470.23x = 11,357,375,430.11
  5. Step 5: Solve for x
    x = 11,357,375,430.11/121,470.23
  6. Step 6: Final answer
    x = 93,499.25

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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.