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Finding the Fourth Proportional to 59,879.52, 89,874.90 and 30,318.30

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Solution

The fourth proportional to 59,879.52, 89,874.90 and 30,318.30 is: 45,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,879.52 : 89,874.90 = 30,318.30 : x
  2. Step 2: Convert to fraction form
    59,879.52/89,874.90 = 30,318.30/x
  3. Step 3: Cross multiply
    59,879.52x = 89,874.90 × 30,318.30
  4. Step 4: Simplify right side
    59,879.52x = 2,724,854,180.67
  5. Step 5: Solve for x
    x = 2,724,854,180.67/59,879.52
  6. Step 6: Final answer
    x = 45,505.61

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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.