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Finding the Fourth Proportional to 80,867.40, 121,301.10 and 41,501.40

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Solution

The fourth proportional to 80,867.40, 121,301.10 and 41,501.40 is: 62,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,867.40 : 121,301.10 = 41,501.40 : x
  2. Step 2: Convert to fraction form
    80,867.40/121,301.10 = 41,501.40/x
  3. Step 3: Cross multiply
    80,867.40x = 121,301.10 × 41,501.40
  4. Step 4: Simplify right side
    80,867.40x = 5,034,165,471.54
  5. Step 5: Solve for x
    x = 5,034,165,471.54/80,867.40
  6. Step 6: Final answer
    x = 62,252.10

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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.