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Finding the Fourth Proportional to 113,839.70, 170,759.55 and 61,351.70

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Solution

The fourth proportional to 113,839.70, 170,759.55 and 61,351.70 is: 92,027.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,839.70 : 170,759.55 = 61,351.70 : x
  2. Step 2: Convert to fraction form
    113,839.70/170,759.55 = 61,351.70/x
  3. Step 3: Cross multiply
    113,839.70x = 170,759.55 × 61,351.70
  4. Step 4: Simplify right side
    113,839.70x = 10,476,388,683.74
  5. Step 5: Solve for x
    x = 10,476,388,683.74/113,839.70
  6. Step 6: Final answer
    x = 92,027.55

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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.