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Finding the Fourth Proportional to 180,937.60, 271,406.40 and 136,031.20

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Solution

The fourth proportional to 180,937.60, 271,406.40 and 136,031.20 is: 204,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,937.60 : 271,406.40 = 136,031.20 : x
  2. Step 2: Convert to fraction form
    180,937.60/271,406.40 = 136,031.20/x
  3. Step 3: Cross multiply
    180,937.60x = 271,406.40 × 136,031.20
  4. Step 4: Simplify right side
    180,937.60x = 36,919,738,279.68
  5. Step 5: Solve for x
    x = 36,919,738,279.68/180,937.60
  6. Step 6: Final answer
    x = 204,046.80

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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.