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Finding the Fourth Proportional to 124,117.56, 171,286.50 and 67,531.08

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Solution

The fourth proportional to 124,117.56, 171,286.50 and 67,531.08 is: 93,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,117.56 : 171,286.50 = 67,531.08 : x
  2. Step 2: Convert to fraction form
    124,117.56/171,286.50 = 67,531.08/x
  3. Step 3: Cross multiply
    124,117.56x = 171,286.50 × 67,531.08
  4. Step 4: Simplify right side
    124,117.56x = 11,567,162,334.42
  5. Step 5: Solve for x
    x = 11,567,162,334.42/124,117.56
  6. Step 6: Final answer
    x = 93,195.21

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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.