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Finding the Fourth Proportional to 79,295.13, 109,417.22 and 43,475.71

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Solution

The fourth proportional to 79,295.13, 109,417.22 and 43,475.71 is: 59,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,295.13 : 109,417.22 = 43,475.71 : x
  2. Step 2: Convert to fraction form
    79,295.13/109,417.22 = 43,475.71/x
  3. Step 3: Cross multiply
    79,295.13x = 109,417.22 × 43,475.71
  4. Step 4: Simplify right side
    79,295.13x = 4,756,991,108.35
  5. Step 5: Solve for x
    x = 4,756,991,108.35/79,295.13
  6. Step 6: Final answer
    x = 59,990.97

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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.