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Finding the Fourth Proportional to 103,392.88, 155,147.88 and 44,223.28

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Solution

The fourth proportional to 103,392.88, 155,147.88 and 44,223.28 is: 66,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,392.88 : 155,147.88 = 44,223.28 : x
  2. Step 2: Convert to fraction form
    103,392.88/155,147.88 = 44,223.28/x
  3. Step 3: Cross multiply
    103,392.88x = 155,147.88 × 44,223.28
  4. Step 4: Simplify right side
    103,392.88x = 6,861,148,138.65
  5. Step 5: Solve for x
    x = 6,861,148,138.65/103,392.88
  6. Step 6: Final answer
    x = 66,359.97

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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.