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Finding the Fourth Proportional to 60,982.88, 84,144.29 and 34,120.17

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Solution

The fourth proportional to 60,982.88, 84,144.29 and 34,120.17 is: 47,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,982.88 : 84,144.29 = 34,120.17 : x
  2. Step 2: Convert to fraction form
    60,982.88/84,144.29 = 34,120.17/x
  3. Step 3: Cross multiply
    60,982.88x = 84,144.29 × 34,120.17
  4. Step 4: Simplify right side
    60,982.88x = 2,871,017,308.73
  5. Step 5: Solve for x
    x = 2,871,017,308.73/60,982.88
  6. Step 6: Final answer
    x = 47,079.07

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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.