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Finding the Fourth Proportional to 330,414.01, 495,621.39 and 90,529.95

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Solution

The fourth proportional to 330,414.01, 495,621.39 and 90,529.95 is: 135,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,414.01 : 495,621.39 = 90,529.95 : x
  2. Step 2: Convert to fraction form
    330,414.01/495,621.39 = 90,529.95/x
  3. Step 3: Cross multiply
    330,414.01x = 495,621.39 × 90,529.95
  4. Step 4: Simplify right side
    330,414.01x = 44,868,581,853.70
  5. Step 5: Solve for x
    x = 44,868,581,853.70/330,414.01
  6. Step 6: Final answer
    x = 135,795.04

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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.