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Finding the Fourth Proportional to 59,587.80, 89,355.30 and 20,134.20

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Solution

The fourth proportional to 59,587.80, 89,355.30 and 20,134.20 is: 30,192.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,587.80 : 89,355.30 = 20,134.20 : x
  2. Step 2: Convert to fraction form
    59,587.80/89,355.30 = 20,134.20/x
  3. Step 3: Cross multiply
    59,587.80x = 89,355.30 × 20,134.20
  4. Step 4: Simplify right side
    59,587.80x = 1,799,097,481.26
  5. Step 5: Solve for x
    x = 1,799,097,481.26/59,587.80
  6. Step 6: Final answer
    x = 30,192.38

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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.