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Finding the Fourth Proportional to 92,558.88, 138,838.36 and 22,438.20

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Solution

The fourth proportional to 92,558.88, 138,838.36 and 22,438.20 is: 33,657.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,558.88 : 138,838.36 = 22,438.20 : x
  2. Step 2: Convert to fraction form
    92,558.88/138,838.36 = 22,438.20/x
  3. Step 3: Cross multiply
    92,558.88x = 138,838.36 × 22,438.20
  4. Step 4: Simplify right side
    92,558.88x = 3,115,282,889.35
  5. Step 5: Solve for x
    x = 3,115,282,889.35/92,558.88
  6. Step 6: Final answer
    x = 33,657.31

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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.