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Finding the Fourth Proportional to 72,361.88, 99,881.07 and 44,081.54

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Solution

The fourth proportional to 72,361.88, 99,881.07 and 44,081.54 is: 60,845.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,361.88 : 99,881.07 = 44,081.54 : x
  2. Step 2: Convert to fraction form
    72,361.88/99,881.07 = 44,081.54/x
  3. Step 3: Cross multiply
    72,361.88x = 99,881.07 × 44,081.54
  4. Step 4: Simplify right side
    72,361.88x = 4,402,911,382.45
  5. Step 5: Solve for x
    x = 4,402,911,382.45/72,361.88
  6. Step 6: Final answer
    x = 60,845.73

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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.