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Finding the Fourth Proportional to 354,843.10, 532,272.14 and 127,153.56

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Solution

The fourth proportional to 354,843.10, 532,272.14 and 127,153.56 is: 190,733.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,843.10 : 532,272.14 = 127,153.56 : x
  2. Step 2: Convert to fraction form
    354,843.10/532,272.14 = 127,153.56/x
  3. Step 3: Cross multiply
    354,843.10x = 532,272.14 × 127,153.56
  4. Step 4: Simplify right side
    354,843.10x = 67,680,296,723.75
  5. Step 5: Solve for x
    x = 67,680,296,723.75/354,843.10
  6. Step 6: Final answer
    x = 190,733.02

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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.