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Finding the Fourth Proportional to 168,072, 252,107.07 and 96,948.54

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Solution

The fourth proportional to 168,072, 252,107.07 and 96,948.54 is: 145,422.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,072 : 252,107.07 = 96,948.54 : x
  2. Step 2: Convert to fraction form
    168,072/252,107.07 = 96,948.54/x
  3. Step 3: Cross multiply
    168,072x = 252,107.07 × 96,948.54
  4. Step 4: Simplify right side
    168,072x = 24,441,412,360.18
  5. Step 5: Solve for x
    x = 24,441,412,360.18/168,072
  6. Step 6: Final answer
    x = 145,422.27

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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.