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Finding the Fourth Proportional to 121,266.65, 167,353.16 and 67,551.71

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Solution

The fourth proportional to 121,266.65, 167,353.16 and 67,551.71 is: 93,224.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,266.65 : 167,353.16 = 67,551.71 : x
  2. Step 2: Convert to fraction form
    121,266.65/167,353.16 = 67,551.71/x
  3. Step 3: Cross multiply
    121,266.65x = 167,353.16 × 67,551.71
  4. Step 4: Simplify right side
    121,266.65x = 11,304,990,957.38
  5. Step 5: Solve for x
    x = 11,304,990,957.38/121,266.65
  6. Step 6: Final answer
    x = 93,224.24

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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.