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Finding the Fourth Proportional to 89,805.86, 134,709.32 and 26,626.53

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Solution

The fourth proportional to 89,805.86, 134,709.32 and 26,626.53 is: 39,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,805.86 : 134,709.32 = 26,626.53 : x
  2. Step 2: Convert to fraction form
    89,805.86/134,709.32 = 26,626.53/x
  3. Step 3: Cross multiply
    89,805.86x = 134,709.32 × 26,626.53
  4. Step 4: Simplify right side
    89,805.86x = 3,586,841,750.26
  5. Step 5: Solve for x
    x = 3,586,841,750.26/89,805.86
  6. Step 6: Final answer
    x = 39,939.95

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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.