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Finding the Fourth Proportional to 121,711.87, 182,583.20 and 41,765.41

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Solution

The fourth proportional to 121,711.87, 182,583.20 and 41,765.41 is: 62,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,711.87 : 182,583.20 = 41,765.41 : x
  2. Step 2: Convert to fraction form
    121,711.87/182,583.20 = 41,765.41/x
  3. Step 3: Cross multiply
    121,711.87x = 182,583.20 × 41,765.41
  4. Step 4: Simplify right side
    121,711.87x = 7,625,662,207.11
  5. Step 5: Solve for x
    x = 7,625,662,207.11/121,711.87
  6. Step 6: Final answer
    x = 62,653.40

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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.