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Finding the Fourth Proportional to 79,322.91, 109,465.79 and 43,513.22

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Solution

The fourth proportional to 79,322.91, 109,465.79 and 43,513.22 is: 60,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,322.91 : 109,465.79 = 43,513.22 : x
  2. Step 2: Convert to fraction form
    79,322.91/109,465.79 = 43,513.22/x
  3. Step 3: Cross multiply
    79,322.91x = 109,465.79 × 43,513.22
  4. Step 4: Simplify right side
    79,322.91x = 4,763,208,237.85
  5. Step 5: Solve for x
    x = 4,763,208,237.85/79,322.91
  6. Step 6: Final answer
    x = 60,048.33

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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.