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Finding the Fourth Proportional to 89,286.86, 133,926.44 and 26,955.50

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Solution

The fourth proportional to 89,286.86, 133,926.44 and 26,955.50 is: 40,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,286.86 : 133,926.44 = 26,955.50 : x
  2. Step 2: Convert to fraction form
    89,286.86/133,926.44 = 26,955.50/x
  3. Step 3: Cross multiply
    89,286.86x = 133,926.44 × 26,955.50
  4. Step 4: Simplify right side
    89,286.86x = 3,610,054,153.42
  5. Step 5: Solve for x
    x = 3,610,054,153.42/89,286.86
  6. Step 6: Final answer
    x = 40,432.09

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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.