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Finding the Fourth Proportional to 167,757.81, 231,429.49 and 99,736.20

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Solution

The fourth proportional to 167,757.81, 231,429.49 and 99,736.20 is: 137,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,757.81 : 231,429.49 = 99,736.20 : x
  2. Step 2: Convert to fraction form
    167,757.81/231,429.49 = 99,736.20/x
  3. Step 3: Cross multiply
    167,757.81x = 231,429.49 × 99,736.20
  4. Step 4: Simplify right side
    167,757.81x = 23,081,897,900.54
  5. Step 5: Solve for x
    x = 23,081,897,900.54/167,757.81
  6. Step 6: Final answer
    x = 137,590.60

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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.