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Finding the Fourth Proportional to 110,622.70, 165,934.05 and 75,630.70

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Solution

The fourth proportional to 110,622.70, 165,934.05 and 75,630.70 is: 113,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,622.70 : 165,934.05 = 75,630.70 : x
  2. Step 2: Convert to fraction form
    110,622.70/165,934.05 = 75,630.70/x
  3. Step 3: Cross multiply
    110,622.70x = 165,934.05 × 75,630.70
  4. Step 4: Simplify right side
    110,622.70x = 12,549,708,355.34
  5. Step 5: Solve for x
    x = 12,549,708,355.34/110,622.70
  6. Step 6: Final answer
    x = 113,446.05

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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.