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Finding the Fourth Proportional to 225,892.04, 338,849.58 and 85,662.28

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Solution

The fourth proportional to 225,892.04, 338,849.58 and 85,662.28 is: 128,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,892.04 : 338,849.58 = 85,662.28 : x
  2. Step 2: Convert to fraction form
    225,892.04/338,849.58 = 85,662.28/x
  3. Step 3: Cross multiply
    225,892.04x = 338,849.58 × 85,662.28
  4. Step 4: Simplify right side
    225,892.04x = 29,026,627,599.84
  5. Step 5: Solve for x
    x = 29,026,627,599.84/225,892.04
  6. Step 6: Final answer
    x = 128,497.79

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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.