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Finding the Fourth Proportional to 89,256.75, 133,879.68 and 36,664.89

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Solution

The fourth proportional to 89,256.75, 133,879.68 and 36,664.89 is: 54,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,256.75 : 133,879.68 = 36,664.89 : x
  2. Step 2: Convert to fraction form
    89,256.75/133,879.68 = 36,664.89/x
  3. Step 3: Cross multiply
    89,256.75x = 133,879.68 × 36,664.89
  4. Step 4: Simplify right side
    89,256.75x = 4,908,683,740.44
  5. Step 5: Solve for x
    x = 4,908,683,740.44/89,256.75
  6. Step 6: Final answer
    x = 54,995.10

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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.