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Finding the Fourth Proportional to 183,791.70, 275,687.55 and 90,479.70

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Solution

The fourth proportional to 183,791.70, 275,687.55 and 90,479.70 is: 135,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,791.70 : 275,687.55 = 90,479.70 : x
  2. Step 2: Convert to fraction form
    183,791.70/275,687.55 = 90,479.70/x
  3. Step 3: Cross multiply
    183,791.70x = 275,687.55 × 90,479.70
  4. Step 4: Simplify right side
    183,791.70x = 24,944,126,817.74
  5. Step 5: Solve for x
    x = 24,944,126,817.74/183,791.70
  6. Step 6: Final answer
    x = 135,719.55

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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.