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Finding the Fourth Proportional to 96,785.97, 145,747.43 and 84,453.12

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Solution

The fourth proportional to 96,785.97, 145,747.43 and 84,453.12 is: 127,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,785.97 : 145,747.43 = 84,453.12 : x
  2. Step 2: Convert to fraction form
    96,785.97/145,747.43 = 84,453.12/x
  3. Step 3: Cross multiply
    96,785.97x = 145,747.43 × 84,453.12
  4. Step 4: Simplify right side
    96,785.97x = 12,308,825,195.48
  5. Step 5: Solve for x
    x = 12,308,825,195.48/96,785.97
  6. Step 6: Final answer
    x = 127,175.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.