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Finding the Fourth Proportional to 330,062.62, 495,120.09 and 93,406.78

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Solution

The fourth proportional to 330,062.62, 495,120.09 and 93,406.78 is: 140,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,062.62 : 495,120.09 = 93,406.78 : x
  2. Step 2: Convert to fraction form
    330,062.62/495,120.09 = 93,406.78/x
  3. Step 3: Cross multiply
    330,062.62x = 495,120.09 × 93,406.78
  4. Step 4: Simplify right side
    330,062.62x = 46,247,573,320.21
  5. Step 5: Solve for x
    x = 46,247,573,320.21/330,062.62
  6. Step 6: Final answer
    x = 140,117.57

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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.