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Finding the Fourth Proportional to 168,758.70, 253,138.05 and 164,870.70

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Solution

The fourth proportional to 168,758.70, 253,138.05 and 164,870.70 is: 247,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,758.70 : 253,138.05 = 164,870.70 : x
  2. Step 2: Convert to fraction form
    168,758.70/253,138.05 = 164,870.70/x
  3. Step 3: Cross multiply
    168,758.70x = 253,138.05 × 164,870.70
  4. Step 4: Simplify right side
    168,758.70x = 41,735,047,500.14
  5. Step 5: Solve for x
    x = 41,735,047,500.14/168,758.70
  6. Step 6: Final answer
    x = 247,306.05

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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.