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Finding the Fourth Proportional to 70,062.67, 96,689.39 and 39,853.31

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Solution

The fourth proportional to 70,062.67, 96,689.39 and 39,853.31 is: 54,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,062.67 : 96,689.39 = 39,853.31 : x
  2. Step 2: Convert to fraction form
    70,062.67/96,689.39 = 39,853.31/x
  3. Step 3: Cross multiply
    70,062.67x = 96,689.39 × 39,853.31
  4. Step 4: Simplify right side
    70,062.67x = 3,853,392,233.38
  5. Step 5: Solve for x
    x = 3,853,392,233.38/70,062.67
  6. Step 6: Final answer
    x = 54,999.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.