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Finding the Fourth Proportional to 83,482.52, 125,251.46 and 55,512.68

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Solution

The fourth proportional to 83,482.52, 125,251.46 and 55,512.68 is: 83,287.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,482.52 : 125,251.46 = 55,512.68 : x
  2. Step 2: Convert to fraction form
    83,482.52/125,251.46 = 55,512.68/x
  3. Step 3: Cross multiply
    83,482.52x = 125,251.46 × 55,512.68
  4. Step 4: Simplify right side
    83,482.52x = 6,953,044,218.51
  5. Step 5: Solve for x
    x = 6,953,044,218.51/83,482.52
  6. Step 6: Final answer
    x = 83,287.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.