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Finding the Fourth Proportional to 188,551.27, 260,201.73 and 103,673.80

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Solution

The fourth proportional to 188,551.27, 260,201.73 and 103,673.80 is: 143,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,551.27 : 260,201.73 = 103,673.80 : x
  2. Step 2: Convert to fraction form
    188,551.27/260,201.73 = 103,673.80/x
  3. Step 3: Cross multiply
    188,551.27x = 260,201.73 × 103,673.80
  4. Step 4: Simplify right side
    188,551.27x = 26,976,102,115.67
  5. Step 5: Solve for x
    x = 26,976,102,115.67/188,551.27
  6. Step 6: Final answer
    x = 143,070.38

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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.