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Finding the Fourth Proportional to 89,801.69, 123,944.28 and 51,587.44

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Solution

The fourth proportional to 89,801.69, 123,944.28 and 51,587.44 is: 71,200.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,801.69 : 123,944.28 = 51,587.44 : x
  2. Step 2: Convert to fraction form
    89,801.69/123,944.28 = 51,587.44/x
  3. Step 3: Cross multiply
    89,801.69x = 123,944.28 × 51,587.44
  4. Step 4: Simplify right side
    89,801.69x = 6,393,967,797.98
  5. Step 5: Solve for x
    x = 6,393,967,797.98/89,801.69
  6. Step 6: Final answer
    x = 71,200.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.