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Finding the Fourth Proportional to 89,167.82, 133,809.66 and 38,616.21

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Solution

The fourth proportional to 89,167.82, 133,809.66 and 38,616.21 is: 57,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,167.82 : 133,809.66 = 38,616.21 : x
  2. Step 2: Convert to fraction form
    89,167.82/133,809.66 = 38,616.21/x
  3. Step 3: Cross multiply
    89,167.82x = 133,809.66 × 38,616.21
  4. Step 4: Simplify right side
    89,167.82x = 5,167,221,930.59
  5. Step 5: Solve for x
    x = 5,167,221,930.59/89,167.82
  6. Step 6: Final answer
    x = 57,949.41

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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.