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Finding the Fourth Proportional to 188,916, 260,700.12 and 104,033.76

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Solution

The fourth proportional to 188,916, 260,700.12 and 104,033.76 is: 143,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,916 : 260,700.12 = 104,033.76 : x
  2. Step 2: Convert to fraction form
    188,916/260,700.12 = 104,033.76/x
  3. Step 3: Cross multiply
    188,916x = 260,700.12 × 104,033.76
  4. Step 4: Simplify right side
    188,916x = 27,121,613,716.05
  5. Step 5: Solve for x
    x = 27,121,613,716.05/188,916
  6. Step 6: Final answer
    x = 143,564.41

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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.