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Finding the Fourth Proportional to 78,796.44, 108,729.63 and 44,805.06

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Solution

The fourth proportional to 78,796.44, 108,729.63 and 44,805.06 is: 61,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,796.44 : 108,729.63 = 44,805.06 : x
  2. Step 2: Convert to fraction form
    78,796.44/108,729.63 = 44,805.06/x
  3. Step 3: Cross multiply
    78,796.44x = 108,729.63 × 44,805.06
  4. Step 4: Simplify right side
    78,796.44x = 4,871,637,595.93
  5. Step 5: Solve for x
    x = 4,871,637,595.93/78,796.44
  6. Step 6: Final answer
    x = 61,825.61

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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.