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Finding the Fourth Proportional to 131,325.80, 196,988.70 and 123,549.80

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Solution

The fourth proportional to 131,325.80, 196,988.70 and 123,549.80 is: 185,324.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,325.80 : 196,988.70 = 123,549.80 : x
  2. Step 2: Convert to fraction form
    131,325.80/196,988.70 = 123,549.80/x
  3. Step 3: Cross multiply
    131,325.80x = 196,988.70 × 123,549.80
  4. Step 4: Simplify right side
    131,325.80x = 24,337,914,487.26
  5. Step 5: Solve for x
    x = 24,337,914,487.26/131,325.80
  6. Step 6: Final answer
    x = 185,324.70

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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.