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Finding the Fourth Proportional to 225,852.57, 338,778.59 and 68,081.01

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Solution

The fourth proportional to 225,852.57, 338,778.59 and 68,081.01 is: 102,121.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,852.57 : 338,778.59 = 68,081.01 : x
  2. Step 2: Convert to fraction form
    225,852.57/338,778.59 = 68,081.01/x
  3. Step 3: Cross multiply
    225,852.57x = 338,778.59 × 68,081.01
  4. Step 4: Simplify right side
    225,852.57x = 23,064,386,962.75
  5. Step 5: Solve for x
    x = 23,064,386,962.75/225,852.57
  6. Step 6: Final answer
    x = 102,121.43

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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.