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Finding the Fourth Proportional to 376,555.80, 564,833.70 and 127,234.20

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Solution

The fourth proportional to 376,555.80, 564,833.70 and 127,234.20 is: 190,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,555.80 : 564,833.70 = 127,234.20 : x
  2. Step 2: Convert to fraction form
    376,555.80/564,833.70 = 127,234.20/x
  3. Step 3: Cross multiply
    376,555.80x = 564,833.70 × 127,234.20
  4. Step 4: Simplify right side
    376,555.80x = 71,866,163,952.54
  5. Step 5: Solve for x
    x = 71,866,163,952.54/376,555.80
  6. Step 6: Final answer
    x = 190,851.30

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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.