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Finding the Fourth Proportional to 92,271.69, 138,382.66 and 38,964.03

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Solution

The fourth proportional to 92,271.69, 138,382.66 and 38,964.03 is: 58,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,271.69 : 138,382.66 = 38,964.03 : x
  2. Step 2: Convert to fraction form
    92,271.69/138,382.66 = 38,964.03/x
  3. Step 3: Cross multiply
    92,271.69x = 138,382.66 × 38,964.03
  4. Step 4: Simplify right side
    92,271.69x = 5,391,946,115.72
  5. Step 5: Solve for x
    x = 5,391,946,115.72/92,271.69
  6. Step 6: Final answer
    x = 58,435.54

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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.