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Finding the Fourth Proportional to 102,484.80, 141,449.76 and 60,079.68

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Solution

The fourth proportional to 102,484.80, 141,449.76 and 60,079.68 is: 82,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,484.80 : 141,449.76 = 60,079.68 : x
  2. Step 2: Convert to fraction form
    102,484.80/141,449.76 = 60,079.68/x
  3. Step 3: Cross multiply
    102,484.80x = 141,449.76 × 60,079.68
  4. Step 4: Simplify right side
    102,484.80x = 8,498,256,316.88
  5. Step 5: Solve for x
    x = 8,498,256,316.88/102,484.80
  6. Step 6: Final answer
    x = 82,922.11

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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.