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Finding the Fourth Proportional to 181,371.72, 250,292.52 and 99,699.42

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Solution

The fourth proportional to 181,371.72, 250,292.52 and 99,699.42 is: 137,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,371.72 : 250,292.52 = 99,699.42 : x
  2. Step 2: Convert to fraction form
    181,371.72/250,292.52 = 99,699.42/x
  3. Step 3: Cross multiply
    181,371.72x = 250,292.52 × 99,699.42
  4. Step 4: Simplify right side
    181,371.72x = 24,954,019,074.34
  5. Step 5: Solve for x
    x = 24,954,019,074.34/181,371.72
  6. Step 6: Final answer
    x = 137,584.95

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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.