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Finding the Fourth Proportional to 73,315.74, 109,972.65 and 17,912.22

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Solution

The fourth proportional to 73,315.74, 109,972.65 and 17,912.22 is: 26,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,315.74 : 109,972.65 = 17,912.22 : x
  2. Step 2: Convert to fraction form
    73,315.74/109,972.65 = 17,912.22/x
  3. Step 3: Cross multiply
    73,315.74x = 109,972.65 × 17,912.22
  4. Step 4: Simplify right side
    73,315.74x = 1,969,854,300.78
  5. Step 5: Solve for x
    x = 1,969,854,300.78/73,315.74
  6. Step 6: Final answer
    x = 26,868.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.