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Finding the Fourth Proportional to 110,528.20, 165,792.30 and 90,845.20

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Solution

The fourth proportional to 110,528.20, 165,792.30 and 90,845.20 is: 136,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,528.20 : 165,792.30 = 90,845.20 : x
  2. Step 2: Convert to fraction form
    110,528.20/165,792.30 = 90,845.20/x
  3. Step 3: Cross multiply
    110,528.20x = 165,792.30 × 90,845.20
  4. Step 4: Simplify right side
    110,528.20x = 15,061,434,651.96
  5. Step 5: Solve for x
    x = 15,061,434,651.96/110,528.20
  6. Step 6: Final answer
    x = 136,267.80

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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.