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Finding the Fourth Proportional to 83,268.48, 124,943.72 and 38,888.76

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Solution

The fourth proportional to 83,268.48, 124,943.72 and 38,888.76 is: 58,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,268.48 : 124,943.72 = 38,888.76 : x
  2. Step 2: Convert to fraction form
    83,268.48/124,943.72 = 38,888.76/x
  3. Step 3: Cross multiply
    83,268.48x = 124,943.72 × 38,888.76
  4. Step 4: Simplify right side
    83,268.48x = 4,858,906,340.59
  5. Step 5: Solve for x
    x = 4,858,906,340.59/83,268.48
  6. Step 6: Final answer
    x = 58,352.29

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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.