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Finding the Fourth Proportional to 188,562.69, 260,209.92 and 103,679.14

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Solution

The fourth proportional to 188,562.69, 260,209.92 and 103,679.14 is: 143,073.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,562.69 : 260,209.92 = 103,679.14 : x
  2. Step 2: Convert to fraction form
    188,562.69/260,209.92 = 103,679.14/x
  3. Step 3: Cross multiply
    188,562.69x = 260,209.92 × 103,679.14
  4. Step 4: Simplify right side
    188,562.69x = 26,978,340,725.07
  5. Step 5: Solve for x
    x = 26,978,340,725.07/188,562.69
  6. Step 6: Final answer
    x = 143,073.59

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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.