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Finding the Fourth Proportional to 113,692.38, 170,441.34 and 43,621.98

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Solution

The fourth proportional to 113,692.38, 170,441.34 and 43,621.98 is: 65,395.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,692.38 : 170,441.34 = 43,621.98 : x
  2. Step 2: Convert to fraction form
    113,692.38/170,441.34 = 43,621.98/x
  3. Step 3: Cross multiply
    113,692.38x = 170,441.34 × 43,621.98
  4. Step 4: Simplify right side
    113,692.38x = 7,434,988,724.65
  5. Step 5: Solve for x
    x = 7,434,988,724.65/113,692.38
  6. Step 6: Final answer
    x = 65,395.66

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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.