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Finding the Fourth Proportional to 161,560.88, 222,961.30 and 89,945.40

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Solution

The fourth proportional to 161,560.88, 222,961.30 and 89,945.40 is: 124,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,560.88 : 222,961.30 = 89,945.40 : x
  2. Step 2: Convert to fraction form
    161,560.88/222,961.30 = 89,945.40/x
  3. Step 3: Cross multiply
    161,560.88x = 222,961.30 × 89,945.40
  4. Step 4: Simplify right side
    161,560.88x = 20,054,343,313.02
  5. Step 5: Solve for x
    x = 20,054,343,313.02/161,560.88
  6. Step 6: Final answer
    x = 124,128.71

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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.