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Finding the Fourth Proportional to 110,279.70, 165,419.55 and 100,110.15

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Solution

The fourth proportional to 110,279.70, 165,419.55 and 100,110.15 is: 150,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,279.70 : 165,419.55 = 100,110.15 : x
  2. Step 2: Convert to fraction form
    110,279.70/165,419.55 = 100,110.15/x
  3. Step 3: Cross multiply
    110,279.70x = 165,419.55 × 100,110.15
  4. Step 4: Simplify right side
    110,279.70x = 16,560,175,963.43
  5. Step 5: Solve for x
    x = 16,560,175,963.43/110,279.70
  6. Step 6: Final answer
    x = 150,165.23

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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.