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Finding the Fourth Proportional to 311,051.20, 466,576.80 and 248,843.20

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Solution

The fourth proportional to 311,051.20, 466,576.80 and 248,843.20 is: 373,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,051.20 : 466,576.80 = 248,843.20 : x
  2. Step 2: Convert to fraction form
    311,051.20/466,576.80 = 248,843.20/x
  3. Step 3: Cross multiply
    311,051.20x = 466,576.80 × 248,843.20
  4. Step 4: Simplify right side
    311,051.20x = 116,104,463,957.76
  5. Step 5: Solve for x
    x = 116,104,463,957.76/311,051.20
  6. Step 6: Final answer
    x = 373,264.80

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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.