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Finding the Fourth Proportional to 89,134.38, 133,679.70 and 36,558.90

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Solution

The fourth proportional to 89,134.38, 133,679.70 and 36,558.90 is: 54,829.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,134.38 : 133,679.70 = 36,558.90 : x
  2. Step 2: Convert to fraction form
    89,134.38/133,679.70 = 36,558.90/x
  3. Step 3: Cross multiply
    89,134.38x = 133,679.70 × 36,558.90
  4. Step 4: Simplify right side
    89,134.38x = 4,887,182,784.33
  5. Step 5: Solve for x
    x = 4,887,182,784.33/89,134.38
  6. Step 6: Final answer
    x = 54,829.38

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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.