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Finding the Fourth Proportional to 168,665.70, 252,836.55 and 97,515.30

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Solution

The fourth proportional to 168,665.70, 252,836.55 and 97,515.30 is: 146,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,665.70 : 252,836.55 = 97,515.30 : x
  2. Step 2: Convert to fraction form
    168,665.70/252,836.55 = 97,515.30/x
  3. Step 3: Cross multiply
    168,665.70x = 252,836.55 × 97,515.30
  4. Step 4: Simplify right side
    168,665.70x = 24,655,432,024.22
  5. Step 5: Solve for x
    x = 24,655,432,024.22/168,665.70
  6. Step 6: Final answer
    x = 146,179.29

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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.