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Finding the Fourth Proportional to 180,193.44, 248,645.08 and 99,609.78

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Solution

The fourth proportional to 180,193.44, 248,645.08 and 99,609.78 is: 137,449.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,193.44 : 248,645.08 = 99,609.78 : x
  2. Step 2: Convert to fraction form
    180,193.44/248,645.08 = 99,609.78/x
  3. Step 3: Cross multiply
    180,193.44x = 248,645.08 × 99,609.78
  4. Step 4: Simplify right side
    180,193.44x = 24,767,481,716.88
  5. Step 5: Solve for x
    x = 24,767,481,716.88/180,193.44
  6. Step 6: Final answer
    x = 137,449.41

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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.