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Finding the Fourth Proportional to 201,773.93, 278,444.59 and 111,138.37

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Solution

The fourth proportional to 201,773.93, 278,444.59 and 111,138.37 is: 153,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,773.93 : 278,444.59 = 111,138.37 : x
  2. Step 2: Convert to fraction form
    201,773.93/278,444.59 = 111,138.37/x
  3. Step 3: Cross multiply
    201,773.93x = 278,444.59 × 111,138.37
  4. Step 4: Simplify right side
    201,773.93x = 30,945,876,893.96
  5. Step 5: Solve for x
    x = 30,945,876,893.96/201,773.93
  6. Step 6: Final answer
    x = 153,369.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.