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Finding the Fourth Proportional to 92,380.39, 138,570.59 and 33,216.06

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Solution

The fourth proportional to 92,380.39, 138,570.59 and 33,216.06 is: 49,824.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,380.39 : 138,570.59 = 33,216.06 : x
  2. Step 2: Convert to fraction form
    92,380.39/138,570.59 = 33,216.06/x
  3. Step 3: Cross multiply
    92,380.39x = 138,570.59 × 33,216.06
  4. Step 4: Simplify right side
    92,380.39x = 4,602,769,031.68
  5. Step 5: Solve for x
    x = 4,602,769,031.68/92,380.39
  6. Step 6: Final answer
    x = 49,824.09

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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.