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Finding the Fourth Proportional to 60,986.85, 84,162.99 and 34,132.31

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Solution

The fourth proportional to 60,986.85, 84,162.99 and 34,132.31 is: 47,103.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,986.85 : 84,162.99 = 34,132.31 : x
  2. Step 2: Convert to fraction form
    60,986.85/84,162.99 = 34,132.31/x
  3. Step 3: Cross multiply
    60,986.85x = 84,162.99 × 34,132.31
  4. Step 4: Simplify right side
    60,986.85x = 2,872,677,265.21
  5. Step 5: Solve for x
    x = 2,872,677,265.21/60,986.85
  6. Step 6: Final answer
    x = 47,103.22

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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.