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Finding the Fourth Proportional to 103,247.97, 154,870.13 and 28,367.82

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Solution

The fourth proportional to 103,247.97, 154,870.13 and 28,367.82 is: 42,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,247.97 : 154,870.13 = 28,367.82 : x
  2. Step 2: Convert to fraction form
    103,247.97/154,870.13 = 28,367.82/x
  3. Step 3: Cross multiply
    103,247.97x = 154,870.13 × 28,367.82
  4. Step 4: Simplify right side
    103,247.97x = 4,393,327,882.57
  5. Step 5: Solve for x
    x = 4,393,327,882.57/103,247.97
  6. Step 6: Final answer
    x = 42,551.23

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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.