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Finding the Fourth Proportional to 351,573.66, 527,251.77 and 126,905.54

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Solution

The fourth proportional to 351,573.66, 527,251.77 and 126,905.54 is: 190,319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,573.66 : 527,251.77 = 126,905.54 : x
  2. Step 2: Convert to fraction form
    351,573.66/527,251.77 = 126,905.54/x
  3. Step 3: Cross multiply
    351,573.66x = 527,251.77 × 126,905.54
  4. Step 4: Simplify right side
    351,573.66x = 66,911,167,951.55
  5. Step 5: Solve for x
    x = 66,911,167,951.55/351,573.66
  6. Step 6: Final answer
    x = 190,319.06

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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.