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Finding the Fourth Proportional to 171,081.92, 256,606.36 and 52,721.48

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Solution

The fourth proportional to 171,081.92, 256,606.36 and 52,721.48 is: 79,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,081.92 : 256,606.36 = 52,721.48 : x
  2. Step 2: Convert to fraction form
    171,081.92/256,606.36 = 52,721.48/x
  3. Step 3: Cross multiply
    171,081.92x = 256,606.36 × 52,721.48
  4. Step 4: Simplify right side
    171,081.92x = 13,528,667,076.61
  5. Step 5: Solve for x
    x = 13,528,667,076.61/171,081.92
  6. Step 6: Final answer
    x = 79,077.13

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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.