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Finding the Fourth Proportional to 92,708.09, 138,979.62 and 33,530.61

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Solution

The fourth proportional to 92,708.09, 138,979.62 and 33,530.61 is: 50,266.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,708.09 : 138,979.62 = 33,530.61 : x
  2. Step 2: Convert to fraction form
    92,708.09/138,979.62 = 33,530.61/x
  3. Step 3: Cross multiply
    92,708.09x = 138,979.62 × 33,530.61
  4. Step 4: Simplify right side
    92,708.09x = 4,660,071,436.17
  5. Step 5: Solve for x
    x = 4,660,071,436.17/92,708.09
  6. Step 6: Final answer
    x = 50,266.07

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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.