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Finding the Fourth Proportional to 82,834.60, 124,251.90 and 59,679.40

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Solution

The fourth proportional to 82,834.60, 124,251.90 and 59,679.40 is: 89,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,834.60 : 124,251.90 = 59,679.40 : x
  2. Step 2: Convert to fraction form
    82,834.60/124,251.90 = 59,679.40/x
  3. Step 3: Cross multiply
    82,834.60x = 124,251.90 × 59,679.40
  4. Step 4: Simplify right side
    82,834.60x = 7,415,278,840.86
  5. Step 5: Solve for x
    x = 7,415,278,840.86/82,834.60
  6. Step 6: Final answer
    x = 89,519.10

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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.