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Finding the Fourth Proportional to 89,853.79, 134,651.44 and 61,805.52

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Solution

The fourth proportional to 89,853.79, 134,651.44 and 61,805.52 is: 92,619.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,853.79 : 134,651.44 = 61,805.52 : x
  2. Step 2: Convert to fraction form
    89,853.79/134,651.44 = 61,805.52/x
  3. Step 3: Cross multiply
    89,853.79x = 134,651.44 × 61,805.52
  4. Step 4: Simplify right side
    89,853.79x = 8,322,202,267.95
  5. Step 5: Solve for x
    x = 8,322,202,267.95/89,853.79
  6. Step 6: Final answer
    x = 92,619.38

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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.