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Finding the Fourth Proportional to 79,262.31, 118,858.89 and 29,979.75

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Solution

The fourth proportional to 79,262.31, 118,858.89 and 29,979.75 is: 44,956.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,262.31 : 118,858.89 = 29,979.75 : x
  2. Step 2: Convert to fraction form
    79,262.31/118,858.89 = 29,979.75/x
  3. Step 3: Cross multiply
    79,262.31x = 118,858.89 × 29,979.75
  4. Step 4: Simplify right side
    79,262.31x = 3,563,359,807.48
  5. Step 5: Solve for x
    x = 3,563,359,807.48/79,262.31
  6. Step 6: Final answer
    x = 44,956.55

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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.