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Finding the Fourth Proportional to 378,969.03, 568,453.55 and 112,733.37

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Solution

The fourth proportional to 378,969.03, 568,453.55 and 112,733.37 is: 169,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,969.03 : 568,453.55 = 112,733.37 : x
  2. Step 2: Convert to fraction form
    378,969.03/568,453.55 = 112,733.37/x
  3. Step 3: Cross multiply
    378,969.03x = 568,453.55 × 112,733.37
  4. Step 4: Simplify right side
    378,969.03x = 64,083,683,816.30
  5. Step 5: Solve for x
    x = 64,083,683,816.30/378,969.03
  6. Step 6: Final answer
    x = 169,100.06

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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.