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Finding the Fourth Proportional to 124,854.59, 172,299.92 and 68,265.96

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Solution

The fourth proportional to 124,854.59, 172,299.92 and 68,265.96 is: 94,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,854.59 : 172,299.92 = 68,265.96 : x
  2. Step 2: Convert to fraction form
    124,854.59/172,299.92 = 68,265.96/x
  3. Step 3: Cross multiply
    124,854.59x = 172,299.92 × 68,265.96
  4. Step 4: Simplify right side
    124,854.59x = 11,762,219,105.39
  5. Step 5: Solve for x
    x = 11,762,219,105.39/124,854.59
  6. Step 6: Final answer
    x = 94,207.35

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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.