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Finding the Fourth Proportional to 82,481.60, 123,722.40 and 62,798.60

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Solution

The fourth proportional to 82,481.60, 123,722.40 and 62,798.60 is: 94,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,481.60 : 123,722.40 = 62,798.60 : x
  2. Step 2: Convert to fraction form
    82,481.60/123,722.40 = 62,798.60/x
  3. Step 3: Cross multiply
    82,481.60x = 123,722.40 × 62,798.60
  4. Step 4: Simplify right side
    82,481.60x = 7,769,593,508.64
  5. Step 5: Solve for x
    x = 7,769,593,508.64/82,481.60
  6. Step 6: Final answer
    x = 94,197.90

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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.