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Finding the Fourth Proportional to 73,871.75, 101,943.06 and 40,337.75

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Solution

The fourth proportional to 73,871.75, 101,943.06 and 40,337.75 is: 55,666.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,871.75 : 101,943.06 = 40,337.75 : x
  2. Step 2: Convert to fraction form
    73,871.75/101,943.06 = 40,337.75/x
  3. Step 3: Cross multiply
    73,871.75x = 101,943.06 × 40,337.75
  4. Step 4: Simplify right side
    73,871.75x = 4,112,153,668.52
  5. Step 5: Solve for x
    x = 4,112,153,668.52/73,871.75
  6. Step 6: Final answer
    x = 55,666.12

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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.