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Finding the Fourth Proportional to 110,342.40, 165,859.20 and 108,268.80

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Solution

The fourth proportional to 110,342.40, 165,859.20 and 108,268.80 is: 162,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,342.40 : 165,859.20 = 108,268.80 : x
  2. Step 2: Convert to fraction form
    110,342.40/165,859.20 = 108,268.80/x
  3. Step 3: Cross multiply
    110,342.40x = 165,859.20 × 108,268.80
  4. Step 4: Simplify right side
    110,342.40x = 17,957,376,552.96
  5. Step 5: Solve for x
    x = 17,957,376,552.96/110,342.40
  6. Step 6: Final answer
    x = 162,742.31

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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.