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Finding the Fourth Proportional to 162,220.74, 223,832.11 and 90,589.74

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Solution

The fourth proportional to 162,220.74, 223,832.11 and 90,589.74 is: 124,995.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,220.74 : 223,832.11 = 90,589.74 : x
  2. Step 2: Convert to fraction form
    162,220.74/223,832.11 = 90,589.74/x
  3. Step 3: Cross multiply
    162,220.74x = 223,832.11 × 90,589.74
  4. Step 4: Simplify right side
    162,220.74x = 20,276,892,648.55
  5. Step 5: Solve for x
    x = 20,276,892,648.55/162,220.74
  6. Step 6: Final answer
    x = 124,995.69

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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.