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Finding the Fourth Proportional to 125,449.52, 173,120.06 and 68,859.68

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Solution

The fourth proportional to 125,449.52, 173,120.06 and 68,859.68 is: 95,026.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,449.52 : 173,120.06 = 68,859.68 : x
  2. Step 2: Convert to fraction form
    125,449.52/173,120.06 = 68,859.68/x
  3. Step 3: Cross multiply
    125,449.52x = 173,120.06 × 68,859.68
  4. Step 4: Simplify right side
    125,449.52x = 11,920,991,933.18
  5. Step 5: Solve for x
    x = 11,920,991,933.18/125,449.52
  6. Step 6: Final answer
    x = 95,026.21

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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.