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Finding the Fourth Proportional to 167,291.73, 230,862.78 and 90,810.75

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Solution

The fourth proportional to 167,291.73, 230,862.78 and 90,810.75 is: 125,318.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,291.73 : 230,862.78 = 90,810.75 : x
  2. Step 2: Convert to fraction form
    167,291.73/230,862.78 = 90,810.75/x
  3. Step 3: Cross multiply
    167,291.73x = 230,862.78 × 90,810.75
  4. Step 4: Simplify right side
    167,291.73x = 20,964,822,198.89
  5. Step 5: Solve for x
    x = 20,964,822,198.89/167,291.73
  6. Step 6: Final answer
    x = 125,318.94

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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.