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Finding the Fourth Proportional to 110,447.80, 165,671.70 and 76,622.20

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Solution

The fourth proportional to 110,447.80, 165,671.70 and 76,622.20 is: 114,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,447.80 : 165,671.70 = 76,622.20 : x
  2. Step 2: Convert to fraction form
    110,447.80/165,671.70 = 76,622.20/x
  3. Step 3: Cross multiply
    110,447.80x = 165,671.70 × 76,622.20
  4. Step 4: Simplify right side
    110,447.80x = 12,694,130,131.74
  5. Step 5: Solve for x
    x = 12,694,130,131.74/110,447.80
  6. Step 6: Final answer
    x = 114,933.30

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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.