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Finding the Fourth Proportional to 375,060.38, 517,481.06 and 213,856.61

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Solution

The fourth proportional to 375,060.38, 517,481.06 and 213,856.61 is: 295,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,060.38 : 517,481.06 = 213,856.61 : x
  2. Step 2: Convert to fraction form
    375,060.38/517,481.06 = 213,856.61/x
  3. Step 3: Cross multiply
    375,060.38x = 517,481.06 × 213,856.61
  4. Step 4: Simplify right side
    375,060.38x = 110,666,741,574.12
  5. Step 5: Solve for x
    x = 110,666,741,574.12/375,060.38
  6. Step 6: Final answer
    x = 295,063.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.