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Finding the Fourth Proportional to 243,500.70, 365,251.05 and 159,519.90

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Solution

The fourth proportional to 243,500.70, 365,251.05 and 159,519.90 is: 239,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,500.70 : 365,251.05 = 159,519.90 : x
  2. Step 2: Convert to fraction form
    243,500.70/365,251.05 = 159,519.90/x
  3. Step 3: Cross multiply
    243,500.70x = 365,251.05 × 159,519.90
  4. Step 4: Simplify right side
    243,500.70x = 58,264,810,970.90
  5. Step 5: Solve for x
    x = 58,264,810,970.90/243,500.70
  6. Step 6: Final answer
    x = 239,279.85

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1.5x scale

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.