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Finding the Fourth Proportional to 82,483.52, 123,700.60 and 43,019.10

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Solution

The fourth proportional to 82,483.52, 123,700.60 and 43,019.10 is: 64,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,483.52 : 123,700.60 = 43,019.10 : x
  2. Step 2: Convert to fraction form
    82,483.52/123,700.60 = 43,019.10/x
  3. Step 3: Cross multiply
    82,483.52x = 123,700.60 × 43,019.10
  4. Step 4: Simplify right side
    82,483.52x = 5,321,488,481.46
  5. Step 5: Solve for x
    x = 5,321,488,481.46/82,483.52
  6. Step 6: Final answer
    x = 64,515.78

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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.