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Finding the Fourth Proportional to 73,866.75, 101,936.16 and 40,332.75

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Solution

The fourth proportional to 73,866.75, 101,936.16 and 40,332.75 is: 55,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,866.75 : 101,936.16 = 40,332.75 : x
  2. Step 2: Convert to fraction form
    73,866.75/101,936.16 = 40,332.75/x
  3. Step 3: Cross multiply
    73,866.75x = 101,936.16 × 40,332.75
  4. Step 4: Simplify right side
    73,866.75x = 4,111,365,657.24
  5. Step 5: Solve for x
    x = 4,111,365,657.24/73,866.75
  6. Step 6: Final answer
    x = 55,659.22

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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.