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Finding the Fourth Proportional to 242,796.90, 364,022.55 and 92,979.30

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Solution

The fourth proportional to 242,796.90, 364,022.55 and 92,979.30 is: 139,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,796.90 : 364,022.55 = 92,979.30 : x
  2. Step 2: Convert to fraction form
    242,796.90/364,022.55 = 92,979.30/x
  3. Step 3: Cross multiply
    242,796.90x = 364,022.55 × 92,979.30
  4. Step 4: Simplify right side
    242,796.90x = 33,846,561,883.22
  5. Step 5: Solve for x
    x = 33,846,561,883.22/242,796.90
  6. Step 6: Final answer
    x = 139,402.78

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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.