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Finding the Fourth Proportional to 71,151.86, 98,186.92 and 40,941.86

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Solution

The fourth proportional to 71,151.86, 98,186.92 and 40,941.86 is: 56,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,151.86 : 98,186.92 = 40,941.86 : x
  2. Step 2: Convert to fraction form
    71,151.86/98,186.92 = 40,941.86/x
  3. Step 3: Cross multiply
    71,151.86x = 98,186.92 × 40,941.86
  4. Step 4: Simplify right side
    71,151.86x = 4,019,954,539.18
  5. Step 5: Solve for x
    x = 4,019,954,539.18/71,151.86
  6. Step 6: Final answer
    x = 56,498.23

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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.