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Finding the Fourth Proportional to 331,345.08, 457,525.87 and 270,100.88

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Solution

The fourth proportional to 331,345.08, 457,525.87 and 270,100.88 is: 372,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,345.08 : 457,525.87 = 270,100.88 : x
  2. Step 2: Convert to fraction form
    331,345.08/457,525.87 = 270,100.88/x
  3. Step 3: Cross multiply
    331,345.08x = 457,525.87 × 270,100.88
  4. Step 4: Simplify right side
    331,345.08x = 123,578,138,862.61
  5. Step 5: Solve for x
    x = 123,578,138,862.61/331,345.08
  6. Step 6: Final answer
    x = 372,959.03

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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.