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Finding the Fourth Proportional to 372,245.62, 513,650.28 and 211,041.76

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Solution

The fourth proportional to 372,245.62, 513,650.28 and 211,041.76 is: 291,210.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,245.62 : 513,650.28 = 211,041.76 : x
  2. Step 2: Convert to fraction form
    372,245.62/513,650.28 = 211,041.76/x
  3. Step 3: Cross multiply
    372,245.62x = 513,650.28 × 211,041.76
  4. Step 4: Simplify right side
    372,245.62x = 108,401,659,115.69
  5. Step 5: Solve for x
    x = 108,401,659,115.69/372,245.62
  6. Step 6: Final answer
    x = 291,210.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.