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Finding the Fourth Proportional to 495,676.98, 743,514.03 and 140,691.33

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Solution

The fourth proportional to 495,676.98, 743,514.03 and 140,691.33 is: 211,036.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,676.98 : 743,514.03 = 140,691.33 : x
  2. Step 2: Convert to fraction form
    495,676.98/743,514.03 = 140,691.33/x
  3. Step 3: Cross multiply
    495,676.98x = 743,514.03 × 140,691.33
  4. Step 4: Simplify right side
    495,676.98x = 104,605,977,754.36
  5. Step 5: Solve for x
    x = 104,605,977,754.36/495,676.98
  6. Step 6: Final answer
    x = 211,036.59

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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.