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Finding the Fourth Proportional to 225,330.29, 338,171.57 and 99,057.77

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Solution

The fourth proportional to 225,330.29, 338,171.57 and 99,057.77 is: 148,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,330.29 : 338,171.57 = 99,057.77 : x
  2. Step 2: Convert to fraction form
    225,330.29/338,171.57 = 99,057.77/x
  3. Step 3: Cross multiply
    225,330.29x = 338,171.57 × 99,057.77
  4. Step 4: Simplify right side
    225,330.29x = 33,498,522,199.38
  5. Step 5: Solve for x
    x = 33,498,522,199.38/225,330.29
  6. Step 6: Final answer
    x = 148,664.09

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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.