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Finding the Fourth Proportional to 59,618.40, 89,438.40 and 29,961.60

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Solution

The fourth proportional to 59,618.40, 89,438.40 and 29,961.60 is: 44,947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,618.40 : 89,438.40 = 29,961.60 : x
  2. Step 2: Convert to fraction form
    59,618.40/89,438.40 = 29,961.60/x
  3. Step 3: Cross multiply
    59,618.40x = 89,438.40 × 29,961.60
  4. Step 4: Simplify right side
    59,618.40x = 2,679,717,565.44
  5. Step 5: Solve for x
    x = 2,679,717,565.44/59,618.40
  6. Step 6: Final answer
    x = 44,947.83

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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.