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Finding the Fourth Proportional to 188,167.70, 259,674.37 and 103,292.50

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Solution

The fourth proportional to 188,167.70, 259,674.37 and 103,292.50 is: 142,545.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,167.70 : 259,674.37 = 103,292.50 : x
  2. Step 2: Convert to fraction form
    188,167.70/259,674.37 = 103,292.50/x
  3. Step 3: Cross multiply
    188,167.70x = 259,674.37 × 103,292.50
  4. Step 4: Simplify right side
    188,167.70x = 26,822,414,863.23
  5. Step 5: Solve for x
    x = 26,822,414,863.23/188,167.70
  6. Step 6: Final answer
    x = 142,545.27

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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.