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Finding the Fourth Proportional to 261,132.46, 391,873.83 and 167,703.82

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Solution

The fourth proportional to 261,132.46, 391,873.83 and 167,703.82 is: 251,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,132.46 : 391,873.83 = 167,703.82 : x
  2. Step 2: Convert to fraction form
    261,132.46/391,873.83 = 167,703.82/x
  3. Step 3: Cross multiply
    261,132.46x = 391,873.83 × 167,703.82
  4. Step 4: Simplify right side
    261,132.46x = 65,718,738,249.03
  5. Step 5: Solve for x
    x = 65,718,738,249.03/261,132.46
  6. Step 6: Final answer
    x = 251,668.21

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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.