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Finding the Fourth Proportional to 92,707.84, 138,979.30 and 33,530.36

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Solution

The fourth proportional to 92,707.84, 138,979.30 and 33,530.36 is: 50,265.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,707.84 : 138,979.30 = 33,530.36 : x
  2. Step 2: Convert to fraction form
    92,707.84/138,979.30 = 33,530.36/x
  3. Step 3: Cross multiply
    92,707.84x = 138,979.30 × 33,530.36
  4. Step 4: Simplify right side
    92,707.84x = 4,660,025,961.55
  5. Step 5: Solve for x
    x = 4,660,025,961.55/92,707.84
  6. Step 6: Final answer
    x = 50,265.72

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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.