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Finding the Fourth Proportional to 83,387.81, 124,924.76 and 41,218.53

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Solution

The fourth proportional to 83,387.81, 124,924.76 and 41,218.53 is: 61,750.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,387.81 : 124,924.76 = 41,218.53 : x
  2. Step 2: Convert to fraction form
    83,387.81/124,924.76 = 41,218.53/x
  3. Step 3: Cross multiply
    83,387.81x = 124,924.76 × 41,218.53
  4. Step 4: Simplify right side
    83,387.81x = 5,149,214,447.81
  5. Step 5: Solve for x
    x = 5,149,214,447.81/83,387.81
  6. Step 6: Final answer
    x = 61,750.21

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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.