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Finding the Fourth Proportional to 104,207.73, 143,690.40 and 75,470.55

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Solution

The fourth proportional to 104,207.73, 143,690.40 and 75,470.55 is: 104,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,207.73 : 143,690.40 = 75,470.55 : x
  2. Step 2: Convert to fraction form
    104,207.73/143,690.40 = 75,470.55/x
  3. Step 3: Cross multiply
    104,207.73x = 143,690.40 × 75,470.55
  4. Step 4: Simplify right side
    104,207.73x = 10,844,393,517.72
  5. Step 5: Solve for x
    x = 10,844,393,517.72/104,207.73
  6. Step 6: Final answer
    x = 104,065.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.