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Finding the Fourth Proportional to 104,651.39, 144,799.23 and 91,250.57

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Solution

The fourth proportional to 104,651.39, 144,799.23 and 91,250.57 is: 126,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,651.39 : 144,799.23 = 91,250.57 : x
  2. Step 2: Convert to fraction form
    104,651.39/144,799.23 = 91,250.57/x
  3. Step 3: Cross multiply
    104,651.39x = 144,799.23 × 91,250.57
  4. Step 4: Simplify right side
    104,651.39x = 13,213,012,273.06
  5. Step 5: Solve for x
    x = 13,213,012,273.06/104,651.39
  6. Step 6: Final answer
    x = 126,257.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.