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Finding the Fourth Proportional to 161,516.86, 222,891.02 and 89,896.90

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Solution

The fourth proportional to 161,516.86, 222,891.02 and 89,896.90 is: 124,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,516.86 : 222,891.02 = 89,896.90 : x
  2. Step 2: Convert to fraction form
    161,516.86/222,891.02 = 89,896.90/x
  3. Step 3: Cross multiply
    161,516.86x = 222,891.02 × 89,896.90
  4. Step 4: Simplify right side
    161,516.86x = 20,037,211,735.84
  5. Step 5: Solve for x
    x = 20,037,211,735.84/161,516.86
  6. Step 6: Final answer
    x = 124,056.47

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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.