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Finding the Fourth Proportional to 69,510.99, 103,757.79 and 59,713.23

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Solution

The fourth proportional to 69,510.99, 103,757.79 and 59,713.23 is: 89,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,510.99 : 103,757.79 = 59,713.23 : x
  2. Step 2: Convert to fraction form
    69,510.99/103,757.79 = 59,713.23/x
  3. Step 3: Cross multiply
    69,510.99x = 103,757.79 × 59,713.23
  4. Step 4: Simplify right side
    69,510.99x = 6,195,712,778.56
  5. Step 5: Solve for x
    x = 6,195,712,778.56/69,510.99
  6. Step 6: Final answer
    x = 89,132.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.