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Finding the Fourth Proportional to 59,575.80, 89,337.30 and 20,122.20

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Solution

The fourth proportional to 59,575.80, 89,337.30 and 20,122.20 is: 30,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,575.80 : 89,337.30 = 20,122.20 : x
  2. Step 2: Convert to fraction form
    59,575.80/89,337.30 = 20,122.20/x
  3. Step 3: Cross multiply
    59,575.80x = 89,337.30 × 20,122.20
  4. Step 4: Simplify right side
    59,575.80x = 1,797,663,018.06
  5. Step 5: Solve for x
    x = 1,797,663,018.06/59,575.80
  6. Step 6: Final answer
    x = 30,174.38

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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.