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Finding the Fourth Proportional to 330,572.13, 495,439.90 and 162,052.84

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Solution

The fourth proportional to 330,572.13, 495,439.90 and 162,052.84 is: 242,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,572.13 : 495,439.90 = 162,052.84 : x
  2. Step 2: Convert to fraction form
    330,572.13/495,439.90 = 162,052.84/x
  3. Step 3: Cross multiply
    330,572.13x = 495,439.90 × 162,052.84
  4. Step 4: Simplify right side
    330,572.13x = 80,287,442,844.32
  5. Step 5: Solve for x
    x = 80,287,442,844.32/330,572.13
  6. Step 6: Final answer
    x = 242,874.20

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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.