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Finding the Fourth Proportional to 124,116.56, 171,285.12 and 67,530.08

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Solution

The fourth proportional to 124,116.56, 171,285.12 and 67,530.08 is: 93,193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,116.56 : 171,285.12 = 67,530.08 : x
  2. Step 2: Convert to fraction form
    124,116.56/171,285.12 = 67,530.08/x
  3. Step 3: Cross multiply
    124,116.56x = 171,285.12 × 67,530.08
  4. Step 4: Simplify right side
    124,116.56x = 11,566,897,856.41
  5. Step 5: Solve for x
    x = 11,566,897,856.41/124,116.56
  6. Step 6: Final answer
    x = 93,193.83

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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.