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Finding the Fourth Proportional to 207,230.80, 310,692.60 and 88,805.20

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Solution

The fourth proportional to 207,230.80, 310,692.60 and 88,805.20 is: 133,141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,230.80 : 310,692.60 = 88,805.20 : x
  2. Step 2: Convert to fraction form
    207,230.80/310,692.60 = 88,805.20/x
  3. Step 3: Cross multiply
    207,230.80x = 310,692.60 × 88,805.20
  4. Step 4: Simplify right side
    207,230.80x = 27,591,118,481.52
  5. Step 5: Solve for x
    x = 27,591,118,481.52/207,230.80
  6. Step 6: Final answer
    x = 133,141.98

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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.