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Finding the Fourth Proportional to 242,979.86, 364,539.73 and 74,524.90

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Solution

The fourth proportional to 242,979.86, 364,539.73 and 74,524.90 is: 111,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,979.86 : 364,539.73 = 74,524.90 : x
  2. Step 2: Convert to fraction form
    242,979.86/364,539.73 = 74,524.90/x
  3. Step 3: Cross multiply
    242,979.86x = 364,539.73 × 74,524.90
  4. Step 4: Simplify right side
    242,979.86x = 27,167,286,924.28
  5. Step 5: Solve for x
    x = 27,167,286,924.28/242,979.86
  6. Step 6: Final answer
    x = 111,808.80

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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.