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Finding the Fourth Proportional to 72,524.94, 100,091.61 and 48,701.22

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Solution

The fourth proportional to 72,524.94, 100,091.61 and 48,701.22 is: 67,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,524.94 : 100,091.61 = 48,701.22 : x
  2. Step 2: Convert to fraction form
    72,524.94/100,091.61 = 48,701.22/x
  3. Step 3: Cross multiply
    72,524.94x = 100,091.61 × 48,701.22
  4. Step 4: Simplify right side
    72,524.94x = 4,874,583,518.76
  5. Step 5: Solve for x
    x = 4,874,583,518.76/72,524.94
  6. Step 6: Final answer
    x = 67,212.51

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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.