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Finding the Fourth Proportional to 168,787.80, 253,141.20 and 97,556.40

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Solution

The fourth proportional to 168,787.80, 253,141.20 and 97,556.40 is: 146,311.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,787.80 : 253,141.20 = 97,556.40 : x
  2. Step 2: Convert to fraction form
    168,787.80/253,141.20 = 97,556.40/x
  3. Step 3: Cross multiply
    168,787.80x = 253,141.20 × 97,556.40
  4. Step 4: Simplify right side
    168,787.80x = 24,695,544,163.68
  5. Step 5: Solve for x
    x = 24,695,544,163.68/168,787.80
  6. Step 6: Final answer
    x = 146,311.19

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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.