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Finding the Fourth Proportional to 167,382.98, 230,987.78 and 90,901.54

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Solution

The fourth proportional to 167,382.98, 230,987.78 and 90,901.54 is: 125,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,382.98 : 230,987.78 = 90,901.54 : x
  2. Step 2: Convert to fraction form
    167,382.98/230,987.78 = 90,901.54/x
  3. Step 3: Cross multiply
    167,382.98x = 230,987.78 × 90,901.54
  4. Step 4: Simplify right side
    167,382.98x = 20,997,144,923.18
  5. Step 5: Solve for x
    x = 20,997,144,923.18/167,382.98
  6. Step 6: Final answer
    x = 125,443.73

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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.