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Finding the Fourth Proportional to 171,727.78, 256,340.82 and 159,064.48

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Solution

The fourth proportional to 171,727.78, 256,340.82 and 159,064.48 is: 237,438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,727.78 : 256,340.82 = 159,064.48 : x
  2. Step 2: Convert to fraction form
    171,727.78/256,340.82 = 159,064.48/x
  3. Step 3: Cross multiply
    171,727.78x = 256,340.82 × 159,064.48
  4. Step 4: Simplify right side
    171,727.78x = 40,774,719,236.07
  5. Step 5: Solve for x
    x = 40,774,719,236.07/171,727.78
  6. Step 6: Final answer
    x = 237,438.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.