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Finding the Fourth Proportional to 168,755.70, 253,198.35 and 166,098.90

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Solution

The fourth proportional to 168,755.70, 253,198.35 and 166,098.90 is: 249,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,755.70 : 253,198.35 = 166,098.90 : x
  2. Step 2: Convert to fraction form
    168,755.70/253,198.35 = 166,098.90/x
  3. Step 3: Cross multiply
    168,755.70x = 253,198.35 × 166,098.90
  4. Step 4: Simplify right side
    168,755.70x = 42,055,967,416.82
  5. Step 5: Solve for x
    x = 42,055,967,416.82/168,755.70
  6. Step 6: Final answer
    x = 249,212.13

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1.5x scale

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.