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Finding the Fourth Proportional to 101,326.38, 151,866.67 and 74,422.91

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Solution

The fourth proportional to 101,326.38, 151,866.67 and 74,422.91 is: 111,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,326.38 : 151,866.67 = 74,422.91 : x
  2. Step 2: Convert to fraction form
    101,326.38/151,866.67 = 74,422.91/x
  3. Step 3: Cross multiply
    101,326.38x = 151,866.67 × 74,422.91
  4. Step 4: Simplify right side
    101,326.38x = 11,302,359,628.75
  5. Step 5: Solve for x
    x = 11,302,359,628.75/101,326.38
  6. Step 6: Final answer
    x = 111,544.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.