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Finding the Fourth Proportional to 79,703.36, 109,986.24 and 43,886.37

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Solution

The fourth proportional to 79,703.36, 109,986.24 and 43,886.37 is: 60,560.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,703.36 : 109,986.24 = 43,886.37 : x
  2. Step 2: Convert to fraction form
    79,703.36/109,986.24 = 43,886.37/x
  3. Step 3: Cross multiply
    79,703.36x = 109,986.24 × 43,886.37
  4. Step 4: Simplify right side
    79,703.36x = 4,826,896,823.55
  5. Step 5: Solve for x
    x = 4,826,896,823.55/79,703.36
  6. Step 6: Final answer
    x = 60,560.77

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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.