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Finding the Fourth Proportional to 69,171.28, 103,674.90 and 62,118.20

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Solution

The fourth proportional to 69,171.28, 103,674.90 and 62,118.20 is: 93,103.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,171.28 : 103,674.90 = 62,118.20 : x
  2. Step 2: Convert to fraction form
    69,171.28/103,674.90 = 62,118.20/x
  3. Step 3: Cross multiply
    69,171.28x = 103,674.90 × 62,118.20
  4. Step 4: Simplify right side
    69,171.28x = 6,440,098,173.18
  5. Step 5: Solve for x
    x = 6,440,098,173.18/69,171.28
  6. Step 6: Final answer
    x = 93,103.64

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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.