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Finding the Fourth Proportional to 78,797.72, 108,736.40 and 44,801.48

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Solution

The fourth proportional to 78,797.72, 108,736.40 and 44,801.48 is: 61,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,797.72 : 108,736.40 = 44,801.48 : x
  2. Step 2: Convert to fraction form
    78,797.72/108,736.40 = 44,801.48/x
  3. Step 3: Cross multiply
    78,797.72x = 108,736.40 × 44,801.48
  4. Step 4: Simplify right side
    78,797.72x = 4,871,551,649.87
  5. Step 5: Solve for x
    x = 4,871,551,649.87/78,797.72
  6. Step 6: Final answer
    x = 61,823.51

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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.