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Finding the Fourth Proportional to 78,302.97, 108,064.91 and 44,322.37

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Solution

The fourth proportional to 78,302.97, 108,064.91 and 44,322.37 is: 61,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,302.97 : 108,064.91 = 44,322.37 : x
  2. Step 2: Convert to fraction form
    78,302.97/108,064.91 = 44,322.37/x
  3. Step 3: Cross multiply
    78,302.97x = 108,064.91 × 44,322.37
  4. Step 4: Simplify right side
    78,302.97x = 4,789,692,765.68
  5. Step 5: Solve for x
    x = 4,789,692,765.68/78,302.97
  6. Step 6: Final answer
    x = 61,168.72

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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.