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Finding the Fourth Proportional to 121,275.57, 167,360.49 and 67,562.49

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Solution

The fourth proportional to 121,275.57, 167,360.49 and 67,562.49 is: 93,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,275.57 : 167,360.49 = 67,562.49 : x
  2. Step 2: Convert to fraction form
    121,275.57/167,360.49 = 67,562.49/x
  3. Step 3: Cross multiply
    121,275.57x = 167,360.49 × 67,562.49
  4. Step 4: Simplify right side
    121,275.57x = 11,307,291,432.02
  5. Step 5: Solve for x
    x = 11,307,291,432.02/121,275.57
  6. Step 6: Final answer
    x = 93,236.35

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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.