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Finding the Fourth Proportional to 71,881.86, 99,197.92 and 41,668.86

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Solution

The fourth proportional to 71,881.86, 99,197.92 and 41,668.86 is: 57,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,881.86 : 99,197.92 = 41,668.86 : x
  2. Step 2: Convert to fraction form
    71,881.86/99,197.92 = 41,668.86/x
  3. Step 3: Cross multiply
    71,881.86x = 99,197.92 × 41,668.86
  4. Step 4: Simplify right side
    71,881.86x = 4,133,464,240.77
  5. Step 5: Solve for x
    x = 4,133,464,240.77/71,881.86
  6. Step 6: Final answer
    x = 57,503.58

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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.