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Finding the Fourth Proportional to 161,451.18, 222,803.76 and 89,834.22

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Solution

The fourth proportional to 161,451.18, 222,803.76 and 89,834.22 is: 123,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,451.18 : 222,803.76 = 89,834.22 : x
  2. Step 2: Convert to fraction form
    161,451.18/222,803.76 = 89,834.22/x
  3. Step 3: Cross multiply
    161,451.18x = 222,803.76 × 89,834.22
  4. Step 4: Simplify right side
    161,451.18x = 20,015,401,992.67
  5. Step 5: Solve for x
    x = 20,015,401,992.67/161,451.18
  6. Step 6: Final answer
    x = 123,971.85

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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.