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Finding the Fourth Proportional to 83,417.82, 125,145.19 and 45,958.61

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Solution

The fourth proportional to 83,417.82, 125,145.19 and 45,958.61 is: 68,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,417.82 : 125,145.19 = 45,958.61 : x
  2. Step 2: Convert to fraction form
    83,417.82/125,145.19 = 45,958.61/x
  3. Step 3: Cross multiply
    83,417.82x = 125,145.19 × 45,958.61
  4. Step 4: Simplify right side
    83,417.82x = 5,751,498,388.44
  5. Step 5: Solve for x
    x = 5,751,498,388.44/83,417.82
  6. Step 6: Final answer
    x = 68,948.08

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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.