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Finding the Fourth Proportional to 162,679.80, 243,997.20 and 50,437.20

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Solution

The fourth proportional to 162,679.80, 243,997.20 and 50,437.20 is: 75,648.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,679.80 : 243,997.20 = 50,437.20 : x
  2. Step 2: Convert to fraction form
    162,679.80/243,997.20 = 50,437.20/x
  3. Step 3: Cross multiply
    162,679.80x = 243,997.20 × 50,437.20
  4. Step 4: Simplify right side
    162,679.80x = 12,306,535,575.84
  5. Step 5: Solve for x
    x = 12,306,535,575.84/162,679.80
  6. Step 6: Final answer
    x = 75,648.82

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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.