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Finding the Fourth Proportional to 363,937.10, 545,905.65 and 127,255.10

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Solution

The fourth proportional to 363,937.10, 545,905.65 and 127,255.10 is: 190,882.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,937.10 : 545,905.65 = 127,255.10 : x
  2. Step 2: Convert to fraction form
    363,937.10/545,905.65 = 127,255.10/x
  3. Step 3: Cross multiply
    363,937.10x = 545,905.65 × 127,255.10
  4. Step 4: Simplify right side
    363,937.10x = 69,469,278,081.32
  5. Step 5: Solve for x
    x = 69,469,278,081.32/363,937.10
  6. Step 6: Final answer
    x = 190,882.65

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Similar ratio
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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.