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Finding the Fourth Proportional to 242,662.23, 363,994.31 and 74,181.93

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Solution

The fourth proportional to 242,662.23, 363,994.31 and 74,181.93 is: 111,273.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,662.23 : 363,994.31 = 74,181.93 : x
  2. Step 2: Convert to fraction form
    242,662.23/363,994.31 = 74,181.93/x
  3. Step 3: Cross multiply
    242,662.23x = 363,994.31 × 74,181.93
  4. Step 4: Simplify right side
    242,662.23x = 27,001,800,053.91
  5. Step 5: Solve for x
    x = 27,001,800,053.91/242,662.23
  6. Step 6: Final answer
    x = 111,273.19

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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.