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Finding the Fourth Proportional to 378,812.37, 568,204.70 and 112,565.96

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Solution

The fourth proportional to 378,812.37, 568,204.70 and 112,565.96 is: 168,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,812.37 : 568,204.70 = 112,565.96 : x
  2. Step 2: Convert to fraction form
    378,812.37/568,204.70 = 112,565.96/x
  3. Step 3: Cross multiply
    378,812.37x = 568,204.70 × 112,565.96
  4. Step 4: Simplify right side
    378,812.37x = 63,960,507,532.01
  5. Step 5: Solve for x
    x = 63,960,507,532.01/378,812.37
  6. Step 6: Final answer
    x = 168,844.83

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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.