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Finding the Fourth Proportional to 73,142.82, 109,653.75 and 33,666.66

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Solution

The fourth proportional to 73,142.82, 109,653.75 and 33,666.66 is: 50,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,142.82 : 109,653.75 = 33,666.66 : x
  2. Step 2: Convert to fraction form
    73,142.82/109,653.75 = 33,666.66/x
  3. Step 3: Cross multiply
    73,142.82x = 109,653.75 × 33,666.66
  4. Step 4: Simplify right side
    73,142.82x = 3,691,675,518.98
  5. Step 5: Solve for x
    x = 3,691,675,518.98/73,142.82
  6. Step 6: Final answer
    x = 50,472.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.