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Finding the Fourth Proportional to 482,228.68, 723,377.64 and 127,238.56

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Solution

The fourth proportional to 482,228.68, 723,377.64 and 127,238.56 is: 190,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,228.68 : 723,377.64 = 127,238.56 : x
  2. Step 2: Convert to fraction form
    482,228.68/723,377.64 = 127,238.56/x
  3. Step 3: Cross multiply
    482,228.68x = 723,377.64 × 127,238.56
  4. Step 4: Simplify right side
    482,228.68x = 92,041,529,249.80
  5. Step 5: Solve for x
    x = 92,041,529,249.80/482,228.68
  6. Step 6: Final answer
    x = 190,866.97

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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.