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Finding the Fourth Proportional to 171,747.60, 257,718.84 and 66,573.84

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Solution

The fourth proportional to 171,747.60, 257,718.84 and 66,573.84 is: 99,898.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,747.60 : 257,718.84 = 66,573.84 : x
  2. Step 2: Convert to fraction form
    171,747.60/257,718.84 = 66,573.84/x
  3. Step 3: Cross multiply
    171,747.60x = 257,718.84 × 66,573.84
  4. Step 4: Simplify right side
    171,747.60x = 17,157,332,819.15
  5. Step 5: Solve for x
    x = 17,157,332,819.15/171,747.60
  6. Step 6: Final answer
    x = 99,898.53

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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.