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Finding the Fourth Proportional to 89,294.53, 133,938.55 and 36,009.49

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Solution

The fourth proportional to 89,294.53, 133,938.55 and 36,009.49 is: 54,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,294.53 : 133,938.55 = 36,009.49 : x
  2. Step 2: Convert to fraction form
    89,294.53/133,938.55 = 36,009.49/x
  3. Step 3: Cross multiply
    89,294.53x = 133,938.55 × 36,009.49
  4. Step 4: Simplify right side
    89,294.53x = 4,823,058,876.84
  5. Step 5: Solve for x
    x = 4,823,058,876.84/89,294.53
  6. Step 6: Final answer
    x = 54,012.93

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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.