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Finding the Fourth Proportional to 92,039.86, 126,964.63 and 59,344.48

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Solution

The fourth proportional to 92,039.86, 126,964.63 and 59,344.48 is: 81,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,039.86 : 126,964.63 = 59,344.48 : x
  2. Step 2: Convert to fraction form
    92,039.86/126,964.63 = 59,344.48/x
  3. Step 3: Cross multiply
    92,039.86x = 126,964.63 × 59,344.48
  4. Step 4: Simplify right side
    92,039.86x = 7,534,649,945.74
  5. Step 5: Solve for x
    x = 7,534,649,945.74/92,039.86
  6. Step 6: Final answer
    x = 81,862.90

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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.