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Finding the Fourth Proportional to 330,180.42, 495,246.40 and 105,480.52

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Solution

The fourth proportional to 330,180.42, 495,246.40 and 105,480.52 is: 158,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,180.42 : 495,246.40 = 105,480.52 : x
  2. Step 2: Convert to fraction form
    330,180.42/495,246.40 = 105,480.52/x
  3. Step 3: Cross multiply
    330,180.42x = 495,246.40 × 105,480.52
  4. Step 4: Simplify right side
    330,180.42x = 52,238,847,800.13
  5. Step 5: Solve for x
    x = 52,238,847,800.13/330,180.42
  6. Step 6: Final answer
    x = 158,213.04

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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.