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Finding the Fourth Proportional to 133,322.52, 199,983.78 and 92,031.96

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Solution

The fourth proportional to 133,322.52, 199,983.78 and 92,031.96 is: 138,047.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,322.52 : 199,983.78 = 92,031.96 : x
  2. Step 2: Convert to fraction form
    133,322.52/199,983.78 = 92,031.96/x
  3. Step 3: Cross multiply
    133,322.52x = 199,983.78 × 92,031.96
  4. Step 4: Simplify right side
    133,322.52x = 18,404,899,241.61
  5. Step 5: Solve for x
    x = 18,404,899,241.61/133,322.52
  6. Step 6: Final answer
    x = 138,047.94

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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.