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Finding the Fourth Proportional to 225,684.51, 338,527.98 and 67,911.90

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Solution

The fourth proportional to 225,684.51, 338,527.98 and 67,911.90 is: 101,868.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,684.51 : 338,527.98 = 67,911.90 : x
  2. Step 2: Convert to fraction form
    225,684.51/338,527.98 = 67,911.90/x
  3. Step 3: Cross multiply
    225,684.51x = 338,527.98 × 67,911.90
  4. Step 4: Simplify right side
    225,684.51x = 22,990,078,324.96
  5. Step 5: Solve for x
    x = 22,990,078,324.96/225,684.51
  6. Step 6: Final answer
    x = 101,868.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.