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Finding the Fourth Proportional to 92,606, 138,908.88 and 22,485.20

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Solution

The fourth proportional to 92,606, 138,908.88 and 22,485.20 is: 33,727.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,606 : 138,908.88 = 22,485.20 : x
  2. Step 2: Convert to fraction form
    92,606/138,908.88 = 22,485.20/x
  3. Step 3: Cross multiply
    92,606x = 138,908.88 × 22,485.20
  4. Step 4: Simplify right side
    92,606x = 3,123,393,948.58
  5. Step 5: Solve for x
    x = 3,123,393,948.58/92,606
  6. Step 6: Final answer
    x = 33,727.77

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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.