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Finding the Fourth Proportional to 242,486.66, 363,784.26 and 74,021.96

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Solution

The fourth proportional to 242,486.66, 363,784.26 and 74,021.96 is: 111,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,486.66 : 363,784.26 = 74,021.96 : x
  2. Step 2: Convert to fraction form
    242,486.66/363,784.26 = 74,021.96/x
  3. Step 3: Cross multiply
    242,486.66x = 363,784.26 × 74,021.96
  4. Step 4: Simplify right side
    242,486.66x = 26,928,023,942.35
  5. Step 5: Solve for x
    x = 26,928,023,942.35/242,486.66
  6. Step 6: Final answer
    x = 111,049.51

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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.