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Finding the Fourth Proportional to 188,294.11, 259,847.92 and 103,411.17

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Solution

The fourth proportional to 188,294.11, 259,847.92 and 103,411.17 is: 142,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,294.11 : 259,847.92 = 103,411.17 : x
  2. Step 2: Convert to fraction form
    188,294.11/259,847.92 = 103,411.17/x
  3. Step 3: Cross multiply
    188,294.11x = 259,847.92 × 103,411.17
  4. Step 4: Simplify right side
    188,294.11x = 26,871,178,532.96
  5. Step 5: Solve for x
    x = 26,871,178,532.96/188,294.11
  6. Step 6: Final answer
    x = 142,708.54

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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.