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Finding the Fourth Proportional to 79,201.72, 109,208.82 and 50,483.08

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Solution

The fourth proportional to 79,201.72, 109,208.82 and 50,483.08 is: 69,609.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,201.72 : 109,208.82 = 50,483.08 : x
  2. Step 2: Convert to fraction form
    79,201.72/109,208.82 = 50,483.08/x
  3. Step 3: Cross multiply
    79,201.72x = 109,208.82 × 50,483.08
  4. Step 4: Simplify right side
    79,201.72x = 5,513,197,596.77
  5. Step 5: Solve for x
    x = 5,513,197,596.77/79,201.72
  6. Step 6: Final answer
    x = 69,609.57

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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.