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Finding the Fourth Proportional to 576,156.20, 864,234.30 and 155,474.60

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Solution

The fourth proportional to 576,156.20, 864,234.30 and 155,474.60 is: 233,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,156.20 : 864,234.30 = 155,474.60 : x
  2. Step 2: Convert to fraction form
    576,156.20/864,234.30 = 155,474.60/x
  3. Step 3: Cross multiply
    576,156.20x = 864,234.30 × 155,474.60
  4. Step 4: Simplify right side
    576,156.20x = 134,366,482,098.78
  5. Step 5: Solve for x
    x = 134,366,482,098.78/576,156.20
  6. Step 6: Final answer
    x = 233,211.90

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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.