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Finding the Fourth Proportional to 79,513.22, 109,726.83 and 43,703.22

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Solution

The fourth proportional to 79,513.22, 109,726.83 and 43,703.22 is: 60,309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,513.22 : 109,726.83 = 43,703.22 : x
  2. Step 2: Convert to fraction form
    79,513.22/109,726.83 = 43,703.22/x
  3. Step 3: Cross multiply
    79,513.22x = 109,726.83 × 43,703.22
  4. Step 4: Simplify right side
    79,513.22x = 4,795,415,771.35
  5. Step 5: Solve for x
    x = 4,795,415,771.35/79,513.22
  6. Step 6: Final answer
    x = 60,309.67

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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.