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Finding the Fourth Proportional to 59,615.20, 89,480.40 and 36,287.20

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Solution

The fourth proportional to 59,615.20, 89,480.40 and 36,287.20 is: 54,465.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,615.20 : 89,480.40 = 36,287.20 : x
  2. Step 2: Convert to fraction form
    59,615.20/89,480.40 = 36,287.20/x
  3. Step 3: Cross multiply
    59,615.20x = 89,480.40 × 36,287.20
  4. Step 4: Simplify right side
    59,615.20x = 3,246,993,170.88
  5. Step 5: Solve for x
    x = 3,246,993,170.88/59,615.20
  6. Step 6: Final answer
    x = 54,465.86

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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.