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Finding the Fourth Proportional to 169,361.87, 254,010.38 and 85,098.69

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Solution

The fourth proportional to 169,361.87, 254,010.38 and 85,098.69 is: 127,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,361.87 : 254,010.38 = 85,098.69 : x
  2. Step 2: Convert to fraction form
    169,361.87/254,010.38 = 85,098.69/x
  3. Step 3: Cross multiply
    169,361.87x = 254,010.38 × 85,098.69
  4. Step 4: Simplify right side
    169,361.87x = 21,615,950,158.91
  5. Step 5: Solve for x
    x = 21,615,950,158.91/169,361.87
  6. Step 6: Final answer
    x = 127,631.74

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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.