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Finding the Fourth Proportional to 330,082.32, 495,044.12 and 152,418.64

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Solution

The fourth proportional to 330,082.32, 495,044.12 and 152,418.64 is: 228,591.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,082.32 : 495,044.12 = 152,418.64 : x
  2. Step 2: Convert to fraction form
    330,082.32/495,044.12 = 152,418.64/x
  3. Step 3: Cross multiply
    330,082.32x = 495,044.12 × 152,418.64
  4. Step 4: Simplify right side
    330,082.32x = 75,453,951,510.40
  5. Step 5: Solve for x
    x = 75,453,951,510.40/330,082.32
  6. Step 6: Final answer
    x = 228,591.31

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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.