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Finding the Fourth Proportional to 92,473.92, 138,702.24 and 39,873.60

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Solution

The fourth proportional to 92,473.92, 138,702.24 and 39,873.60 is: 59,806.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,473.92 : 138,702.24 = 39,873.60 : x
  2. Step 2: Convert to fraction form
    92,473.92/138,702.24 = 39,873.60/x
  3. Step 3: Cross multiply
    92,473.92x = 138,702.24 × 39,873.60
  4. Step 4: Simplify right side
    92,473.92x = 5,530,557,636.86
  5. Step 5: Solve for x
    x = 5,530,557,636.86/92,473.92
  6. Step 6: Final answer
    x = 59,806.67

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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.