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Finding the Fourth Proportional to 167,740.68, 231,486.54 and 91,264.56

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Solution

The fourth proportional to 167,740.68, 231,486.54 and 91,264.56 is: 125,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,740.68 : 231,486.54 = 91,264.56 : x
  2. Step 2: Convert to fraction form
    167,740.68/231,486.54 = 91,264.56/x
  3. Step 3: Cross multiply
    167,740.68x = 231,486.54 × 91,264.56
  4. Step 4: Simplify right side
    167,740.68x = 21,126,517,219.02
  5. Step 5: Solve for x
    x = 21,126,517,219.02/167,740.68
  6. Step 6: Final answer
    x = 125,947.49

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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.