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Finding the Fourth Proportional to 242,655.22, 363,983.73 and 74,174.90

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Solution

The fourth proportional to 242,655.22, 363,983.73 and 74,174.90 is: 111,262.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,655.22 : 363,983.73 = 74,174.90 : x
  2. Step 2: Convert to fraction form
    242,655.22/363,983.73 = 74,174.90/x
  3. Step 3: Cross multiply
    242,655.22x = 363,983.73 × 74,174.90
  4. Step 4: Simplify right side
    242,655.22x = 26,998,455,093.54
  5. Step 5: Solve for x
    x = 26,998,455,093.54/242,655.22
  6. Step 6: Final answer
    x = 111,262.62

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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.