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Finding the Fourth Proportional to 89,124.82, 122,995.64 and 50,890.59

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Solution

The fourth proportional to 89,124.82, 122,995.64 and 50,890.59 is: 70,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,124.82 : 122,995.64 = 50,890.59 : x
  2. Step 2: Convert to fraction form
    89,124.82/122,995.64 = 50,890.59/x
  3. Step 3: Cross multiply
    89,124.82x = 122,995.64 × 50,890.59
  4. Step 4: Simplify right side
    89,124.82x = 6,259,320,687.03
  5. Step 5: Solve for x
    x = 6,259,320,687.03/89,124.82
  6. Step 6: Final answer
    x = 70,230.95

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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.