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Finding the Fourth Proportional to 89,182.66, 133,772.64 and 21,715.24

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Solution

The fourth proportional to 89,182.66, 133,772.64 and 21,715.24 is: 32,572.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,182.66 : 133,772.64 = 21,715.24 : x
  2. Step 2: Convert to fraction form
    89,182.66/133,772.64 = 21,715.24/x
  3. Step 3: Cross multiply
    89,182.66x = 133,772.64 × 21,715.24
  4. Step 4: Simplify right side
    89,182.66x = 2,904,904,983.03
  5. Step 5: Solve for x
    x = 2,904,904,983.03/89,182.66
  6. Step 6: Final answer
    x = 32,572.53

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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.