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Finding the Fourth Proportional to 125,342.52, 172,967.04 and 68,752.68

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Solution

The fourth proportional to 125,342.52, 172,967.04 and 68,752.68 is: 94,875.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,342.52 : 172,967.04 = 68,752.68 : x
  2. Step 2: Convert to fraction form
    125,342.52/172,967.04 = 68,752.68/x
  3. Step 3: Cross multiply
    125,342.52x = 172,967.04 × 68,752.68
  4. Step 4: Simplify right side
    125,342.52x = 11,891,947,551.67
  5. Step 5: Solve for x
    x = 11,891,947,551.67/125,342.52
  6. Step 6: Final answer
    x = 94,875.61

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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.