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Finding the Fourth Proportional to 312,361.52, 468,625.20 and 162,557.48

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Solution

The fourth proportional to 312,361.52, 468,625.20 and 162,557.48 is: 243,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,361.52 : 468,625.20 = 162,557.48 : x
  2. Step 2: Convert to fraction form
    312,361.52/468,625.20 = 162,557.48/x
  3. Step 3: Cross multiply
    312,361.52x = 468,625.20 × 162,557.48
  4. Step 4: Simplify right side
    312,361.52x = 76,178,532,138.47
  5. Step 5: Solve for x
    x = 76,178,532,138.47/312,361.52
  6. Step 6: Final answer
    x = 243,879.38

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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.