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Finding the Fourth Proportional to 92,758.44, 139,109.81 and 39,449.97

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Solution

The fourth proportional to 92,758.44, 139,109.81 and 39,449.97 is: 59,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,758.44 : 139,109.81 = 39,449.97 : x
  2. Step 2: Convert to fraction form
    92,758.44/139,109.81 = 39,449.97/x
  3. Step 3: Cross multiply
    92,758.44x = 139,109.81 × 39,449.97
  4. Step 4: Simplify right side
    92,758.44x = 5,487,877,831.21
  5. Step 5: Solve for x
    x = 5,487,877,831.21/92,758.44
  6. Step 6: Final answer
    x = 59,163.11

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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.