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Finding the Fourth Proportional to 381,596.55, 572,273.28 and 125,369.63

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Solution

The fourth proportional to 381,596.55, 572,273.28 and 125,369.63 is: 188,014.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,596.55 : 572,273.28 = 125,369.63 : x
  2. Step 2: Convert to fraction form
    381,596.55/572,273.28 = 125,369.63/x
  3. Step 3: Cross multiply
    381,596.55x = 572,273.28 × 125,369.63
  4. Step 4: Simplify right side
    381,596.55x = 71,745,685,884.27
  5. Step 5: Solve for x
    x = 71,745,685,884.27/381,596.55
  6. Step 6: Final answer
    x = 188,014.51

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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.