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Finding the Fourth Proportional to 83,169.40, 124,832.40 and 43,754.80

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Solution

The fourth proportional to 83,169.40, 124,832.40 and 43,754.80 is: 65,673.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,169.40 : 124,832.40 = 43,754.80 : x
  2. Step 2: Convert to fraction form
    83,169.40/124,832.40 = 43,754.80/x
  3. Step 3: Cross multiply
    83,169.40x = 124,832.40 × 43,754.80
  4. Step 4: Simplify right side
    83,169.40x = 5,462,016,695.52
  5. Step 5: Solve for x
    x = 5,462,016,695.52/83,169.40
  6. Step 6: Final answer
    x = 65,673.39

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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.