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Finding the Fourth Proportional to 253,228.56, 379,972.44 and 103,579.44

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Solution

The fourth proportional to 253,228.56, 379,972.44 and 103,579.44 is: 155,422.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,228.56 : 379,972.44 = 103,579.44 : x
  2. Step 2: Convert to fraction form
    253,228.56/379,972.44 = 103,579.44/x
  3. Step 3: Cross multiply
    253,228.56x = 379,972.44 × 103,579.44
  4. Step 4: Simplify right side
    253,228.56x = 39,357,332,550.63
  5. Step 5: Solve for x
    x = 39,357,332,550.63/253,228.56
  6. Step 6: Final answer
    x = 155,422.17

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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.