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Finding the Fourth Proportional to 89,229.70, 133,731.15 and 36,579.70

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Solution

The fourth proportional to 89,229.70, 133,731.15 and 36,579.70 is: 54,823.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,229.70 : 133,731.15 = 36,579.70 : x
  2. Step 2: Convert to fraction form
    89,229.70/133,731.15 = 36,579.70/x
  3. Step 3: Cross multiply
    89,229.70x = 133,731.15 × 36,579.70
  4. Step 4: Simplify right side
    89,229.70x = 4,891,845,347.66
  5. Step 5: Solve for x
    x = 4,891,845,347.66/89,229.70
  6. Step 6: Final answer
    x = 54,823.06

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1.5x scale

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.