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Finding the Fourth Proportional to 71,118.45, 106,692.53 and 23,731.65

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Solution

The fourth proportional to 71,118.45, 106,692.53 and 23,731.65 is: 35,602.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,118.45 : 106,692.53 = 23,731.65 : x
  2. Step 2: Convert to fraction form
    71,118.45/106,692.53 = 23,731.65/x
  3. Step 3: Cross multiply
    71,118.45x = 106,692.53 × 23,731.65
  4. Step 4: Simplify right side
    71,118.45x = 2,531,989,660.92
  5. Step 5: Solve for x
    x = 2,531,989,660.92/71,118.45
  6. Step 6: Final answer
    x = 35,602.43

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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.