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Finding the Fourth Proportional to 330,186.60, 495,251.10 and 108,570.60

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Solution

The fourth proportional to 330,186.60, 495,251.10 and 108,570.60 is: 162,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,186.60 : 495,251.10 = 108,570.60 : x
  2. Step 2: Convert to fraction form
    330,186.60/495,251.10 = 108,570.60/x
  3. Step 3: Cross multiply
    330,186.60x = 495,251.10 × 108,570.60
  4. Step 4: Simplify right side
    330,186.60x = 53,769,709,077.66
  5. Step 5: Solve for x
    x = 53,769,709,077.66/330,186.60
  6. Step 6: Final answer
    x = 162,846.43

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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.