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Finding the Fourth Proportional to 495,940.40, 743,910.60 and 163,473.20

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Solution

The fourth proportional to 495,940.40, 743,910.60 and 163,473.20 is: 245,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,940.40 : 743,910.60 = 163,473.20 : x
  2. Step 2: Convert to fraction form
    495,940.40/743,910.60 = 163,473.20/x
  3. Step 3: Cross multiply
    495,940.40x = 743,910.60 × 163,473.20
  4. Step 4: Simplify right side
    495,940.40x = 121,609,446,295.92
  5. Step 5: Solve for x
    x = 121,609,446,295.92/495,940.40
  6. Step 6: Final answer
    x = 245,209.80

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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.