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Finding the Fourth Proportional to 171,628.84, 257,440.02 and 53,297.56

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Solution

The fourth proportional to 171,628.84, 257,440.02 and 53,297.56 is: 79,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,628.84 : 257,440.02 = 53,297.56 : x
  2. Step 2: Convert to fraction form
    171,628.84/257,440.02 = 53,297.56/x
  3. Step 3: Cross multiply
    171,628.84x = 257,440.02 × 53,297.56
  4. Step 4: Simplify right side
    171,628.84x = 13,720,924,912.35
  5. Step 5: Solve for x
    x = 13,720,924,912.35/171,628.84
  6. Step 6: Final answer
    x = 79,945.33

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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.