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Finding the Fourth Proportional to 73,840.16, 101,863.94 and 48,335.28

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Solution

The fourth proportional to 73,840.16, 101,863.94 and 48,335.28 is: 66,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,840.16 : 101,863.94 = 48,335.28 : x
  2. Step 2: Convert to fraction form
    73,840.16/101,863.94 = 48,335.28/x
  3. Step 3: Cross multiply
    73,840.16x = 101,863.94 × 48,335.28
  4. Step 4: Simplify right side
    73,840.16x = 4,923,622,061.80
  5. Step 5: Solve for x
    x = 4,923,622,061.80/73,840.16
  6. Step 6: Final answer
    x = 66,679.46

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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.