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Finding the Fourth Proportional to 258,136.92, 356,104.78 and 167,521.31

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Solution

The fourth proportional to 258,136.92, 356,104.78 and 167,521.31 is: 231,098.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,136.92 : 356,104.78 = 167,521.31 : x
  2. Step 2: Convert to fraction form
    258,136.92/356,104.78 = 167,521.31/x
  3. Step 3: Cross multiply
    258,136.92x = 356,104.78 × 167,521.31
  4. Step 4: Simplify right side
    258,136.92x = 59,655,137,043.53
  5. Step 5: Solve for x
    x = 59,655,137,043.53/258,136.92
  6. Step 6: Final answer
    x = 231,098.82

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1.5x scale

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.