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Finding the Fourth Proportional to 188,553.13, 260,202.52 and 103,668.37

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Solution

The fourth proportional to 188,553.13, 260,202.52 and 103,668.37 is: 143,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,553.13 : 260,202.52 = 103,668.37 : x
  2. Step 2: Convert to fraction form
    188,553.13/260,202.52 = 103,668.37/x
  3. Step 3: Cross multiply
    188,553.13x = 260,202.52 × 103,668.37
  4. Step 4: Simplify right side
    188,553.13x = 26,974,771,118.29
  5. Step 5: Solve for x
    x = 26,974,771,118.29/188,553.13
  6. Step 6: Final answer
    x = 143,061.91

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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.