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Finding the Fourth Proportional to 188,911.67, 260,698.10 and 104,028.73

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Solution

The fourth proportional to 188,911.67, 260,698.10 and 104,028.73 is: 143,559.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,911.67 : 260,698.10 = 104,028.73 : x
  2. Step 2: Convert to fraction form
    188,911.67/260,698.10 = 104,028.73/x
  3. Step 3: Cross multiply
    188,911.67x = 260,698.10 × 104,028.73
  4. Step 4: Simplify right side
    188,911.67x = 27,120,092,256.41
  5. Step 5: Solve for x
    x = 27,120,092,256.41/188,911.67
  6. Step 6: Final answer
    x = 143,559.64

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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.