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Finding the Fourth Proportional to 250,634.52, 375,945.57 and 73,143.09

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Solution

The fourth proportional to 250,634.52, 375,945.57 and 73,143.09 is: 109,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,634.52 : 375,945.57 = 73,143.09 : x
  2. Step 2: Convert to fraction form
    250,634.52/375,945.57 = 73,143.09/x
  3. Step 3: Cross multiply
    250,634.52x = 375,945.57 × 73,143.09
  4. Step 4: Simplify right side
    250,634.52x = 27,497,820,661.61
  5. Step 5: Solve for x
    x = 27,497,820,661.61/250,634.52
  6. Step 6: Final answer
    x = 109,712.82

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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.