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Finding the Fourth Proportional to 167,343.13, 230,930.89 and 91,891.63

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Solution

The fourth proportional to 167,343.13, 230,930.89 and 91,891.63 is: 126,809.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,343.13 : 230,930.89 = 91,891.63 : x
  2. Step 2: Convert to fraction form
    167,343.13/230,930.89 = 91,891.63/x
  3. Step 3: Cross multiply
    167,343.13x = 230,930.89 × 91,891.63
  4. Step 4: Simplify right side
    167,343.13x = 21,220,615,899.45
  5. Step 5: Solve for x
    x = 21,220,615,899.45/167,343.13
  6. Step 6: Final answer
    x = 126,809.01

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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.