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Finding the Fourth Proportional to 281,630.92, 422,402.22 and 92,089.96

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Solution

The fourth proportional to 281,630.92, 422,402.22 and 92,089.96 is: 138,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,630.92 : 422,402.22 = 92,089.96 : x
  2. Step 2: Convert to fraction form
    281,630.92/422,402.22 = 92,089.96/x
  3. Step 3: Cross multiply
    281,630.92x = 422,402.22 × 92,089.96
  4. Step 4: Simplify right side
    281,630.92x = 38,899,003,543.71
  5. Step 5: Solve for x
    x = 38,899,003,543.71/281,630.92
  6. Step 6: Final answer
    x = 138,120.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.