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Finding the Fourth Proportional to 496,398.15, 744,375.78 and 141,329.10

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Solution

The fourth proportional to 496,398.15, 744,375.78 and 141,329.10 is: 211,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,398.15 : 744,375.78 = 141,329.10 : x
  2. Step 2: Convert to fraction form
    496,398.15/744,375.78 = 141,329.10/x
  3. Step 3: Cross multiply
    496,398.15x = 744,375.78 × 141,329.10
  4. Step 4: Simplify right side
    496,398.15x = 105,201,959,049.20
  5. Step 5: Solve for x
    x = 105,201,959,049.20/496,398.15
  6. Step 6: Final answer
    x = 211,930.60

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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.