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Finding the Fourth Proportional to 61,615.82, 84,882.40 and 58,614.17

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Solution

The fourth proportional to 61,615.82, 84,882.40 and 58,614.17 is: 80,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,615.82 : 84,882.40 = 58,614.17 : x
  2. Step 2: Convert to fraction form
    61,615.82/84,882.40 = 58,614.17/x
  3. Step 3: Cross multiply
    61,615.82x = 84,882.40 × 58,614.17
  4. Step 4: Simplify right side
    61,615.82x = 4,975,310,852.66
  5. Step 5: Solve for x
    x = 4,975,310,852.66/61,615.82
  6. Step 6: Final answer
    x = 80,747.29

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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.