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Finding the Fourth Proportional to 92,979.60, 139,468.14 and 22,859.52

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Solution

The fourth proportional to 92,979.60, 139,468.14 and 22,859.52 is: 34,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.60 : 139,468.14 = 22,859.52 : x
  2. Step 2: Convert to fraction form
    92,979.60/139,468.14 = 22,859.52/x
  3. Step 3: Cross multiply
    92,979.60x = 139,468.14 × 22,859.52
  4. Step 4: Simplify right side
    92,979.60x = 3,188,174,735.69
  5. Step 5: Solve for x
    x = 3,188,174,735.69/92,979.60
  6. Step 6: Final answer
    x = 34,288.97

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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.