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Finding the Fourth Proportional to 213,195.56, 319,737.58 and 63,395.48

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Solution

The fourth proportional to 213,195.56, 319,737.58 and 63,395.48 is: 95,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,195.56 : 319,737.58 = 63,395.48 : x
  2. Step 2: Convert to fraction form
    213,195.56/319,737.58 = 63,395.48/x
  3. Step 3: Cross multiply
    213,195.56x = 319,737.58 × 63,395.48
  4. Step 4: Simplify right side
    213,195.56x = 20,269,917,358.14
  5. Step 5: Solve for x
    x = 20,269,917,358.14/213,195.56
  6. Step 6: Final answer
    x = 95,076.64

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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.