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Finding the Fourth Proportional to 124,177.70, 171,359.88 and 67,587.86

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Solution

The fourth proportional to 124,177.70, 171,359.88 and 67,587.86 is: 93,268.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,177.70 : 171,359.88 = 67,587.86 : x
  2. Step 2: Convert to fraction form
    124,177.70/171,359.88 = 67,587.86/x
  3. Step 3: Cross multiply
    124,177.70x = 171,359.88 × 67,587.86
  4. Step 4: Simplify right side
    124,177.70x = 11,581,847,579.06
  5. Step 5: Solve for x
    x = 11,581,847,579.06/124,177.70
  6. Step 6: Final answer
    x = 93,268.34

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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.