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Finding the Fourth Proportional to 161,399.52, 222,725.16 and 89,777.16

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Solution

The fourth proportional to 161,399.52, 222,725.16 and 89,777.16 is: 123,889.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,399.52 : 222,725.16 = 89,777.16 : x
  2. Step 2: Convert to fraction form
    161,399.52/222,725.16 = 89,777.16/x
  3. Step 3: Cross multiply
    161,399.52x = 222,725.16 × 89,777.16
  4. Step 4: Simplify right side
    161,399.52x = 19,995,632,325.35
  5. Step 5: Solve for x
    x = 19,995,632,325.35/161,399.52
  6. Step 6: Final answer
    x = 123,889.04

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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.