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Finding the Fourth Proportional to 72,847.76, 100,530.25 and 41,017.19

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Solution

The fourth proportional to 72,847.76, 100,530.25 and 41,017.19 is: 56,603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,847.76 : 100,530.25 = 41,017.19 : x
  2. Step 2: Convert to fraction form
    72,847.76/100,530.25 = 41,017.19/x
  3. Step 3: Cross multiply
    72,847.76x = 100,530.25 × 41,017.19
  4. Step 4: Simplify right side
    72,847.76x = 4,123,467,759.80
  5. Step 5: Solve for x
    x = 4,123,467,759.80/72,847.76
  6. Step 6: Final answer
    x = 56,603.91

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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.