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Finding the Fourth Proportional to 495,456.88, 743,183.92 and 140,473.92

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Solution

The fourth proportional to 495,456.88, 743,183.92 and 140,473.92 is: 210,710.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,456.88 : 743,183.92 = 140,473.92 : x
  2. Step 2: Convert to fraction form
    495,456.88/743,183.92 = 140,473.92/x
  3. Step 3: Cross multiply
    495,456.88x = 743,183.92 × 140,473.92
  4. Step 4: Simplify right side
    495,456.88x = 104,397,958,523.37
  5. Step 5: Solve for x
    x = 104,397,958,523.37/495,456.88
  6. Step 6: Final answer
    x = 210,710.48

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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.