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Finding the Fourth Proportional to 248,812.70, 373,219.05 and 149,279.90

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Solution

The fourth proportional to 248,812.70, 373,219.05 and 149,279.90 is: 223,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,812.70 : 373,219.05 = 149,279.90 : x
  2. Step 2: Convert to fraction form
    248,812.70/373,219.05 = 149,279.90/x
  3. Step 3: Cross multiply
    248,812.70x = 373,219.05 × 149,279.90
  4. Step 4: Simplify right side
    248,812.70x = 55,714,102,462.10
  5. Step 5: Solve for x
    x = 55,714,102,462.10/248,812.70
  6. Step 6: Final answer
    x = 223,919.85

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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.