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Finding the Fourth Proportional to 79,791.30, 119,577.60 and 65,029.05

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Solution

The fourth proportional to 79,791.30, 119,577.60 and 65,029.05 is: 97,454.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,791.30 : 119,577.60 = 65,029.05 : x
  2. Step 2: Convert to fraction form
    79,791.30/119,577.60 = 65,029.05/x
  3. Step 3: Cross multiply
    79,791.30x = 119,577.60 × 65,029.05
  4. Step 4: Simplify right side
    79,791.30x = 7,776,017,729.28
  5. Step 5: Solve for x
    x = 7,776,017,729.28/79,791.30
  6. Step 6: Final answer
    x = 97,454.46

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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.