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Finding the Fourth Proportional to 330,400.80, 495,620.04 and 93,724.92

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Solution

The fourth proportional to 330,400.80, 495,620.04 and 93,724.92 is: 140,592.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,400.80 : 495,620.04 = 93,724.92 : x
  2. Step 2: Convert to fraction form
    330,400.80/495,620.04 = 93,724.92/x
  3. Step 3: Cross multiply
    330,400.80x = 495,620.04 × 93,724.92
  4. Step 4: Simplify right side
    330,400.80x = 46,451,948,599.40
  5. Step 5: Solve for x
    x = 46,451,948,599.40/330,400.80
  6. Step 6: Final answer
    x = 140,592.72

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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.