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Finding the Fourth Proportional to 225,406.48, 311,039.40 and 134,744.44

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Solution

The fourth proportional to 225,406.48, 311,039.40 and 134,744.44 is: 185,934.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,406.48 : 311,039.40 = 134,744.44 : x
  2. Step 2: Convert to fraction form
    225,406.48/311,039.40 = 134,744.44/x
  3. Step 3: Cross multiply
    225,406.48x = 311,039.40 × 134,744.44
  4. Step 4: Simplify right side
    225,406.48x = 41,910,829,770.94
  5. Step 5: Solve for x
    x = 41,910,829,770.94/225,406.48
  6. Step 6: Final answer
    x = 185,934.45

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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.