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Finding the Fourth Proportional to 72,874.42, 100,566.26 and 41,053.57

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Solution

The fourth proportional to 72,874.42, 100,566.26 and 41,053.57 is: 56,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,874.42 : 100,566.26 = 41,053.57 : x
  2. Step 2: Convert to fraction form
    72,874.42/100,566.26 = 41,053.57/x
  3. Step 3: Cross multiply
    72,874.42x = 100,566.26 × 41,053.57
  4. Step 4: Simplify right side
    72,874.42x = 4,128,603,691.82
  5. Step 5: Solve for x
    x = 4,128,603,691.82/72,874.42
  6. Step 6: Final answer
    x = 56,653.68

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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.