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Finding the Fourth Proportional to 171,073.44, 236,097.68 and 99,447.20

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Solution

The fourth proportional to 171,073.44, 236,097.68 and 99,447.20 is: 137,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,073.44 : 236,097.68 = 99,447.20 : x
  2. Step 2: Convert to fraction form
    171,073.44/236,097.68 = 99,447.20/x
  3. Step 3: Cross multiply
    171,073.44x = 236,097.68 × 99,447.20
  4. Step 4: Simplify right side
    171,073.44x = 23,479,253,202.50
  5. Step 5: Solve for x
    x = 23,479,253,202.50/171,073.44
  6. Step 6: Final answer
    x = 137,246.63

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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.