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Finding the Fourth Proportional to 161,512.85, 222,885.51 and 89,892.90

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Solution

The fourth proportional to 161,512.85, 222,885.51 and 89,892.90 is: 124,050.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,512.85 : 222,885.51 = 89,892.90 : x
  2. Step 2: Convert to fraction form
    161,512.85/222,885.51 = 89,892.90/x
  3. Step 3: Cross multiply
    161,512.85x = 222,885.51 × 89,892.90
  4. Step 4: Simplify right side
    161,512.85x = 20,035,824,524.78
  5. Step 5: Solve for x
    x = 20,035,824,524.78/161,512.85
  6. Step 6: Final answer
    x = 124,050.96

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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.