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Finding the Fourth Proportional to 495,673.52, 743,497.16 and 140,687.55

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Solution

The fourth proportional to 495,673.52, 743,497.16 and 140,687.55 is: 211,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,673.52 : 743,497.16 = 140,687.55 : x
  2. Step 2: Convert to fraction form
    495,673.52/743,497.16 = 140,687.55/x
  3. Step 3: Cross multiply
    495,673.52x = 743,497.16 × 140,687.55
  4. Step 4: Simplify right side
    495,673.52x = 104,600,793,168.92
  5. Step 5: Solve for x
    x = 104,600,793,168.92/495,673.52
  6. Step 6: Final answer
    x = 211,027.60

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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.