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Finding the Fourth Proportional to 110,049.60, 165,074.40 and 104,980.80

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Solution

The fourth proportional to 110,049.60, 165,074.40 and 104,980.80 is: 157,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,049.60 : 165,074.40 = 104,980.80 : x
  2. Step 2: Convert to fraction form
    110,049.60/165,074.40 = 104,980.80/x
  3. Step 3: Cross multiply
    110,049.60x = 165,074.40 × 104,980.80
  4. Step 4: Simplify right side
    110,049.60x = 17,329,642,571.52
  5. Step 5: Solve for x
    x = 17,329,642,571.52/110,049.60
  6. Step 6: Final answer
    x = 157,471.20

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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.