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Finding the Fourth Proportional to 82,498.60, 123,747.90 and 59,343.40

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Solution

The fourth proportional to 82,498.60, 123,747.90 and 59,343.40 is: 89,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,498.60 : 123,747.90 = 59,343.40 : x
  2. Step 2: Convert to fraction form
    82,498.60/123,747.90 = 59,343.40/x
  3. Step 3: Cross multiply
    82,498.60x = 123,747.90 × 59,343.40
  4. Step 4: Simplify right side
    82,498.60x = 7,343,621,128.86
  5. Step 5: Solve for x
    x = 7,343,621,128.86/82,498.60
  6. Step 6: Final answer
    x = 89,015.10

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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.