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Finding the Fourth Proportional to 248,889.20, 373,333.80 and 136,914.80

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Solution

The fourth proportional to 248,889.20, 373,333.80 and 136,914.80 is: 205,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,889.20 : 373,333.80 = 136,914.80 : x
  2. Step 2: Convert to fraction form
    248,889.20/373,333.80 = 136,914.80/x
  3. Step 3: Cross multiply
    248,889.20x = 373,333.80 × 136,914.80
  4. Step 4: Simplify right side
    248,889.20x = 51,114,922,560.24
  5. Step 5: Solve for x
    x = 51,114,922,560.24/248,889.20
  6. Step 6: Final answer
    x = 205,372.20

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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.