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Finding the Fourth Proportional to 225,835.12, 338,765.64 and 68,047.12

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Solution

The fourth proportional to 225,835.12, 338,765.64 and 68,047.12 is: 102,074.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,835.12 : 338,765.64 = 68,047.12 : x
  2. Step 2: Convert to fraction form
    225,835.12/338,765.64 = 68,047.12/x
  3. Step 3: Cross multiply
    225,835.12x = 338,765.64 × 68,047.12
  4. Step 4: Simplify right side
    225,835.12x = 23,052,026,156.96
  5. Step 5: Solve for x
    x = 23,052,026,156.96/225,835.12
  6. Step 6: Final answer
    x = 102,074.59

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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.