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Finding the Fourth Proportional to 169,989.84, 255,013.92 and 51,672.96

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Solution

The fourth proportional to 169,989.84, 255,013.92 and 51,672.96 is: 77,518.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,989.84 : 255,013.92 = 51,672.96 : x
  2. Step 2: Convert to fraction form
    169,989.84/255,013.92 = 51,672.96/x
  3. Step 3: Cross multiply
    169,989.84x = 255,013.92 × 51,672.96
  4. Step 4: Simplify right side
    169,989.84x = 13,177,324,087.60
  5. Step 5: Solve for x
    x = 13,177,324,087.60/169,989.84
  6. Step 6: Final answer
    x = 77,518.30

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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.