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Finding the Fourth Proportional to 96,375.40, 144,627.90 and 54,255.40

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Solution

The fourth proportional to 96,375.40, 144,627.90 and 54,255.40 is: 81,419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,375.40 : 144,627.90 = 54,255.40 : x
  2. Step 2: Convert to fraction form
    96,375.40/144,627.90 = 54,255.40/x
  3. Step 3: Cross multiply
    96,375.40x = 144,627.90 × 54,255.40
  4. Step 4: Simplify right side
    96,375.40x = 7,846,844,565.66
  5. Step 5: Solve for x
    x = 7,846,844,565.66/96,375.40
  6. Step 6: Final answer
    x = 81,419.58

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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.