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Finding the Fourth Proportional to 291,757.73, 402,610.12 and 162,709.45

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Solution

The fourth proportional to 291,757.73, 402,610.12 and 162,709.45 is: 224,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,757.73 : 402,610.12 = 162,709.45 : x
  2. Step 2: Convert to fraction form
    291,757.73/402,610.12 = 162,709.45/x
  3. Step 3: Cross multiply
    291,757.73x = 402,610.12 × 162,709.45
  4. Step 4: Simplify right side
    291,757.73x = 65,508,469,776.34
  5. Step 5: Solve for x
    x = 65,508,469,776.34/291,757.73
  6. Step 6: Final answer
    x = 224,530.37

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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.