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Finding the Fourth Proportional to 248,896.80, 373,345.20 and 210,016.80

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Solution

The fourth proportional to 248,896.80, 373,345.20 and 210,016.80 is: 315,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,896.80 : 373,345.20 = 210,016.80 : x
  2. Step 2: Convert to fraction form
    248,896.80/373,345.20 = 210,016.80/x
  3. Step 3: Cross multiply
    248,896.80x = 373,345.20 × 210,016.80
  4. Step 4: Simplify right side
    248,896.80x = 78,408,764,199.36
  5. Step 5: Solve for x
    x = 78,408,764,199.36/248,896.80
  6. Step 6: Final answer
    x = 315,025.20

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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.