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Finding the Fourth Proportional to 496,987.61, 745,481.29 and 142,001.63

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Solution

The fourth proportional to 496,987.61, 745,481.29 and 142,001.63 is: 213,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,987.61 : 745,481.29 = 142,001.63 : x
  2. Step 2: Convert to fraction form
    496,987.61/745,481.29 = 142,001.63/x
  3. Step 3: Cross multiply
    496,987.61x = 745,481.29 × 142,001.63
  4. Step 4: Simplify right side
    496,987.61x = 105,859,556,450.80
  5. Step 5: Solve for x
    x = 105,859,556,450.80/496,987.61
  6. Step 6: Final answer
    x = 213,002.41

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Similar ratio
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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.