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Finding the Fourth Proportional to 210,632.80, 315,949.20 and 184,388.80

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Solution

The fourth proportional to 210,632.80, 315,949.20 and 184,388.80 is: 276,583.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,632.80 : 315,949.20 = 184,388.80 : x
  2. Step 2: Convert to fraction form
    210,632.80/315,949.20 = 184,388.80/x
  3. Step 3: Cross multiply
    210,632.80x = 315,949.20 × 184,388.80
  4. Step 4: Simplify right side
    210,632.80x = 58,257,493,848.96
  5. Step 5: Solve for x
    x = 58,257,493,848.96/210,632.80
  6. Step 6: Final answer
    x = 276,583.20

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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.