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Finding the Fourth Proportional to 295,161.45, 442,773.82 and 81,930.27

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Solution

The fourth proportional to 295,161.45, 442,773.82 and 81,930.27 is: 122,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,161.45 : 442,773.82 = 81,930.27 : x
  2. Step 2: Convert to fraction form
    295,161.45/442,773.82 = 81,930.27/x
  3. Step 3: Cross multiply
    295,161.45x = 442,773.82 × 81,930.27
  4. Step 4: Simplify right side
    295,161.45x = 36,276,577,432.89
  5. Step 5: Solve for x
    x = 36,276,577,432.89/295,161.45
  6. Step 6: Final answer
    x = 122,904.18

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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.