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Finding the Fourth Proportional to 225,762.15, 338,661.65 and 113,384.56

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Solution

The fourth proportional to 225,762.15, 338,661.65 and 113,384.56 is: 170,086.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,762.15 : 338,661.65 = 113,384.56 : x
  2. Step 2: Convert to fraction form
    225,762.15/338,661.65 = 113,384.56/x
  3. Step 3: Cross multiply
    225,762.15x = 338,661.65 × 113,384.56
  4. Step 4: Simplify right side
    225,762.15x = 38,399,002,174.12
  5. Step 5: Solve for x
    x = 38,399,002,174.12/225,762.15
  6. Step 6: Final answer
    x = 170,086.09

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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.