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Finding the Fourth Proportional to 83,906.30, 125,928.30 and 83,250.20

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Solution

The fourth proportional to 83,906.30, 125,928.30 and 83,250.20 is: 124,943.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,906.30 : 125,928.30 = 83,250.20 : x
  2. Step 2: Convert to fraction form
    83,906.30/125,928.30 = 83,250.20/x
  3. Step 3: Cross multiply
    83,906.30x = 125,928.30 × 83,250.20
  4. Step 4: Simplify right side
    83,906.30x = 10,483,556,160.66
  5. Step 5: Solve for x
    x = 10,483,556,160.66/83,906.30
  6. Step 6: Final answer
    x = 124,943.61

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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.