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Finding the Fourth Proportional to 361,377.72, 542,267.46 and 161,690.04

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Solution

The fourth proportional to 361,377.72, 542,267.46 and 161,690.04 is: 242,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,377.72 : 542,267.46 = 161,690.04 : x
  2. Step 2: Convert to fraction form
    361,377.72/542,267.46 = 161,690.04/x
  3. Step 3: Cross multiply
    361,377.72x = 542,267.46 × 161,690.04
  4. Step 4: Simplify right side
    361,377.72x = 87,679,247,298.10
  5. Step 5: Solve for x
    x = 87,679,247,298.10/361,377.72
  6. Step 6: Final answer
    x = 242,624.94

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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.