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Finding the Fourth Proportional to 92,960.78, 139,439.94 and 22,840.70

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Solution

The fourth proportional to 92,960.78, 139,439.94 and 22,840.70 is: 34,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,960.78 : 139,439.94 = 22,840.70 : x
  2. Step 2: Convert to fraction form
    92,960.78/139,439.94 = 22,840.70/x
  3. Step 3: Cross multiply
    92,960.78x = 139,439.94 × 22,840.70
  4. Step 4: Simplify right side
    92,960.78x = 3,184,905,837.56
  5. Step 5: Solve for x
    x = 3,184,905,837.56/92,960.78
  6. Step 6: Final answer
    x = 34,260.75

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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.