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Finding the Fourth Proportional to 330,864.30, 495,968.40 and 162,246.60

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Solution

The fourth proportional to 330,864.30, 495,968.40 and 162,246.60 is: 243,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,864.30 : 495,968.40 = 162,246.60 : x
  2. Step 2: Convert to fraction form
    330,864.30/495,968.40 = 162,246.60/x
  3. Step 3: Cross multiply
    330,864.30x = 495,968.40 × 162,246.60
  4. Step 4: Simplify right side
    330,864.30x = 80,469,186,607.44
  5. Step 5: Solve for x
    x = 80,469,186,607.44/330,864.30
  6. Step 6: Final answer
    x = 243,209.03

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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.