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Finding the Fourth Proportional to 79,295.38, 109,417.56 and 43,475.96

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Solution

The fourth proportional to 79,295.38, 109,417.56 and 43,475.96 is: 59,991.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,295.38 : 109,417.56 = 43,475.96 : x
  2. Step 2: Convert to fraction form
    79,295.38/109,417.56 = 43,475.96/x
  3. Step 3: Cross multiply
    79,295.38x = 109,417.56 × 43,475.96
  4. Step 4: Simplify right side
    79,295.38x = 4,757,033,461.86
  5. Step 5: Solve for x
    x = 4,757,033,461.86/79,295.38
  6. Step 6: Final answer
    x = 59,991.31

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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.