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Finding the Fourth Proportional to 89,218.88, 133,805.92 and 36,642.88

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Solution

The fourth proportional to 89,218.88, 133,805.92 and 36,642.88 is: 54,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,218.88 : 133,805.92 = 36,642.88 : x
  2. Step 2: Convert to fraction form
    89,218.88/133,805.92 = 36,642.88/x
  3. Step 3: Cross multiply
    89,218.88x = 133,805.92 × 36,642.88
  4. Step 4: Simplify right side
    89,218.88x = 4,903,034,269.85
  5. Step 5: Solve for x
    x = 4,903,034,269.85/89,218.88
  6. Step 6: Final answer
    x = 54,955.12

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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.