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Finding the Fourth Proportional to 72,937.88, 100,663.19 and 41,112.57

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Solution

The fourth proportional to 72,937.88, 100,663.19 and 41,112.57 is: 56,740.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,937.88 : 100,663.19 = 41,112.57 : x
  2. Step 2: Convert to fraction form
    72,937.88/100,663.19 = 41,112.57/x
  3. Step 3: Cross multiply
    72,937.88x = 100,663.19 × 41,112.57
  4. Step 4: Simplify right side
    72,937.88x = 4,138,522,239.74
  5. Step 5: Solve for x
    x = 4,138,522,239.74/72,937.88
  6. Step 6: Final answer
    x = 56,740.37

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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.