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Finding the Fourth Proportional to 331,385.60, 497,161.20 and 106,767.20

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Solution

The fourth proportional to 331,385.60, 497,161.20 and 106,767.20 is: 160,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,385.60 : 497,161.20 = 106,767.20 : x
  2. Step 2: Convert to fraction form
    331,385.60/497,161.20 = 106,767.20/x
  3. Step 3: Cross multiply
    331,385.60x = 497,161.20 × 106,767.20
  4. Step 4: Simplify right side
    331,385.60x = 53,080,509,272.64
  5. Step 5: Solve for x
    x = 53,080,509,272.64/331,385.60
  6. Step 6: Final answer
    x = 160,177.48

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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.