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Finding the Fourth Proportional to 169,435.01, 254,144.84 and 74,639.87

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Solution

The fourth proportional to 169,435.01, 254,144.84 and 74,639.87 is: 111,956.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,435.01 : 254,144.84 = 74,639.87 : x
  2. Step 2: Convert to fraction form
    169,435.01/254,144.84 = 74,639.87/x
  3. Step 3: Cross multiply
    169,435.01x = 254,144.84 × 74,639.87
  4. Step 4: Simplify right side
    169,435.01x = 18,969,337,818.77
  5. Step 5: Solve for x
    x = 18,969,337,818.77/169,435.01
  6. Step 6: Final answer
    x = 111,956.42

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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.