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Finding the Fourth Proportional to 71,447.43, 98,605.58 and 41,240.86

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Solution

The fourth proportional to 71,447.43, 98,605.58 and 41,240.86 is: 56,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,447.43 : 98,605.58 = 41,240.86 : x
  2. Step 2: Convert to fraction form
    71,447.43/98,605.58 = 41,240.86/x
  3. Step 3: Cross multiply
    71,447.43x = 98,605.58 × 41,240.86
  4. Step 4: Simplify right side
    71,447.43x = 4,066,579,137.93
  5. Step 5: Solve for x
    x = 4,066,579,137.93/71,447.43
  6. Step 6: Final answer
    x = 56,917.08

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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.