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Finding the Fourth Proportional to 73,871.12, 101,942.52 and 40,337.12

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Solution

The fourth proportional to 73,871.12, 101,942.52 and 40,337.12 is: 55,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,871.12 : 101,942.52 = 40,337.12 : x
  2. Step 2: Convert to fraction form
    73,871.12/101,942.52 = 40,337.12/x
  3. Step 3: Cross multiply
    73,871.12x = 101,942.52 × 40,337.12
  4. Step 4: Simplify right side
    73,871.12x = 4,112,067,662.34
  5. Step 5: Solve for x
    x = 4,112,067,662.34/73,871.12
  6. Step 6: Final answer
    x = 55,665.43

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1.5x scale

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.