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Finding the Fourth Proportional to 376,065.20, 564,042.40 and 123,372.40

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Solution

The fourth proportional to 376,065.20, 564,042.40 and 123,372.40 is: 185,040.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,065.20 : 564,042.40 = 123,372.40 : x
  2. Step 2: Convert to fraction form
    376,065.20/564,042.40 = 123,372.40/x
  3. Step 3: Cross multiply
    376,065.20x = 564,042.40 × 123,372.40
  4. Step 4: Simplify right side
    376,065.20x = 69,587,264,589.76
  5. Step 5: Solve for x
    x = 69,587,264,589.76/376,065.20
  6. Step 6: Final answer
    x = 185,040.43

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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.