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Finding the Fourth Proportional to 311,020.70, 466,531.05 and 248,812.70

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Solution

The fourth proportional to 311,020.70, 466,531.05 and 248,812.70 is: 373,219.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,020.70 : 466,531.05 = 248,812.70 : x
  2. Step 2: Convert to fraction form
    311,020.70/466,531.05 = 248,812.70/x
  3. Step 3: Cross multiply
    311,020.70x = 466,531.05 × 248,812.70
  4. Step 4: Simplify right side
    311,020.70x = 116,078,850,184.34
  5. Step 5: Solve for x
    x = 116,078,850,184.34/311,020.70
  6. Step 6: Final answer
    x = 373,219.05

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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.