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Finding the Fourth Proportional to 188,765.58, 260,498.34 and 103,884.60

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Solution

The fourth proportional to 188,765.58, 260,498.34 and 103,884.60 is: 143,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,765.58 : 260,498.34 = 103,884.60 : x
  2. Step 2: Convert to fraction form
    188,765.58/260,498.34 = 103,884.60/x
  3. Step 3: Cross multiply
    188,765.58x = 260,498.34 × 103,884.60
  4. Step 4: Simplify right side
    188,765.58x = 27,061,765,851.56
  5. Step 5: Solve for x
    x = 27,061,765,851.56/188,765.58
  6. Step 6: Final answer
    x = 143,361.76

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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.