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Finding the Fourth Proportional to 92,362.78, 138,317.37 and 58,984.30

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Solution

The fourth proportional to 92,362.78, 138,317.37 and 58,984.30 is: 88,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,362.78 : 138,317.37 = 58,984.30 : x
  2. Step 2: Convert to fraction form
    92,362.78/138,317.37 = 58,984.30/x
  3. Step 3: Cross multiply
    92,362.78x = 138,317.37 × 58,984.30
  4. Step 4: Simplify right side
    92,362.78x = 8,158,553,247.29
  5. Step 5: Solve for x
    x = 8,158,553,247.29/92,362.78
  6. Step 6: Final answer
    x = 88,331.61

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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.