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Finding the Fourth Proportional to 242,270.80, 363,422.40 and 82,344.40

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Solution

The fourth proportional to 242,270.80, 363,422.40 and 82,344.40 is: 123,522.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,270.80 : 363,422.40 = 82,344.40 : x
  2. Step 2: Convert to fraction form
    242,270.80/363,422.40 = 82,344.40/x
  3. Step 3: Cross multiply
    242,270.80x = 363,422.40 × 82,344.40
  4. Step 4: Simplify right side
    242,270.80x = 29,925,799,474.56
  5. Step 5: Solve for x
    x = 29,925,799,474.56/242,270.80
  6. Step 6: Final answer
    x = 123,522.11

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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.