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Finding the Fourth Proportional to 376,554.80, 564,832.20 and 127,233.20

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Solution

The fourth proportional to 376,554.80, 564,832.20 and 127,233.20 is: 190,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,554.80 : 564,832.20 = 127,233.20 : x
  2. Step 2: Convert to fraction form
    376,554.80/564,832.20 = 127,233.20/x
  3. Step 3: Cross multiply
    376,554.80x = 564,832.20 × 127,233.20
  4. Step 4: Simplify right side
    376,554.80x = 71,865,408,269.04
  5. Step 5: Solve for x
    x = 71,865,408,269.04/376,554.80
  6. Step 6: Final answer
    x = 190,849.80

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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.