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Finding the Fourth Proportional to 188,556.67, 260,208.57 and 103,673.76

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Solution

The fourth proportional to 188,556.67, 260,208.57 and 103,673.76 is: 143,069.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,556.67 : 260,208.57 = 103,673.76 : x
  2. Step 2: Convert to fraction form
    188,556.67/260,208.57 = 103,673.76/x
  3. Step 3: Cross multiply
    188,556.67x = 260,208.57 × 103,673.76
  4. Step 4: Simplify right side
    188,556.67x = 26,976,800,836.12
  5. Step 5: Solve for x
    x = 26,976,800,836.12/188,556.67
  6. Step 6: Final answer
    x = 143,069.99

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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.