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Finding the Fourth Proportional to 104,035.20, 156,067.20 and 40,843.20

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Solution

The fourth proportional to 104,035.20, 156,067.20 and 40,843.20 is: 61,270.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,035.20 : 156,067.20 = 40,843.20 : x
  2. Step 2: Convert to fraction form
    104,035.20/156,067.20 = 40,843.20/x
  3. Step 3: Cross multiply
    104,035.20x = 156,067.20 × 40,843.20
  4. Step 4: Simplify right side
    104,035.20x = 6,374,283,863.04
  5. Step 5: Solve for x
    x = 6,374,283,863.04/104,035.20
  6. Step 6: Final answer
    x = 61,270.45

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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.