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Finding the Fourth Proportional to 167,012.92, 230,476.99 and 90,531.71

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Solution

The fourth proportional to 167,012.92, 230,476.99 and 90,531.71 is: 124,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,012.92 : 230,476.99 = 90,531.71 : x
  2. Step 2: Convert to fraction form
    167,012.92/230,476.99 = 90,531.71/x
  3. Step 3: Cross multiply
    167,012.92x = 230,476.99 × 90,531.71
  4. Step 4: Simplify right side
    167,012.92x = 20,865,475,444.16
  5. Step 5: Solve for x
    x = 20,865,475,444.16/167,012.92
  6. Step 6: Final answer
    x = 124,933.30

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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.