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Finding the Fourth Proportional to 110,532.80, 165,799.20 and 71,134.40

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Solution

The fourth proportional to 110,532.80, 165,799.20 and 71,134.40 is: 106,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,532.80 : 165,799.20 = 71,134.40 : x
  2. Step 2: Convert to fraction form
    110,532.80/165,799.20 = 71,134.40/x
  3. Step 3: Cross multiply
    110,532.80x = 165,799.20 × 71,134.40
  4. Step 4: Simplify right side
    110,532.80x = 11,794,026,612.48
  5. Step 5: Solve for x
    x = 11,794,026,612.48/110,532.80
  6. Step 6: Final answer
    x = 106,701.60

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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.