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Finding the Fourth Proportional to 330,149.02, 495,251.16 and 105,541.42

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Solution

The fourth proportional to 330,149.02, 495,251.16 and 105,541.42 is: 158,320.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,149.02 : 495,251.16 = 105,541.42 : x
  2. Step 2: Convert to fraction form
    330,149.02/495,251.16 = 105,541.42/x
  3. Step 3: Cross multiply
    330,149.02x = 495,251.16 × 105,541.42
  4. Step 4: Simplify right side
    330,149.02x = 52,269,510,683.05
  5. Step 5: Solve for x
    x = 52,269,510,683.05/330,149.02
  6. Step 6: Final answer
    x = 158,320.96

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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.