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Finding the Fourth Proportional to 144,438.86, 199,375.73 and 99,266.38

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Solution

The fourth proportional to 144,438.86, 199,375.73 and 99,266.38 is: 137,022.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,438.86 : 199,375.73 = 99,266.38 : x
  2. Step 2: Convert to fraction form
    144,438.86/199,375.73 = 99,266.38/x
  3. Step 3: Cross multiply
    144,438.86x = 199,375.73 × 99,266.38
  4. Step 4: Simplify right side
    144,438.86x = 19,791,306,726.68
  5. Step 5: Solve for x
    x = 19,791,306,726.68/144,438.86
  6. Step 6: Final answer
    x = 137,022.03

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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.