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Finding the Fourth Proportional to 92,238.48, 138,343.44 and 59,189.64

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Solution

The fourth proportional to 92,238.48, 138,343.44 and 59,189.64 is: 88,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,238.48 : 138,343.44 = 59,189.64 : x
  2. Step 2: Convert to fraction form
    92,238.48/138,343.44 = 59,189.64/x
  3. Step 3: Cross multiply
    92,238.48x = 138,343.44 × 59,189.64
  4. Step 4: Simplify right side
    92,238.48x = 8,188,498,409.96
  5. Step 5: Solve for x
    x = 8,188,498,409.96/92,238.48
  6. Step 6: Final answer
    x = 88,775.30

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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.