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Finding the Fourth Proportional to 79,266.59, 109,387.31 and 43,455.98

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Solution

The fourth proportional to 79,266.59, 109,387.31 and 43,455.98 is: 59,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,266.59 : 109,387.31 = 43,455.98 : x
  2. Step 2: Convert to fraction form
    79,266.59/109,387.31 = 43,455.98/x
  3. Step 3: Cross multiply
    79,266.59x = 109,387.31 × 43,455.98
  4. Step 4: Simplify right side
    79,266.59x = 4,753,531,991.40
  5. Step 5: Solve for x
    x = 4,753,531,991.40/79,266.59
  6. Step 6: Final answer
    x = 59,968.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.