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Finding the Fourth Proportional to 311,472.04, 467,266.30 and 145,260.04

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Solution

The fourth proportional to 311,472.04, 467,266.30 and 145,260.04 is: 217,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,472.04 : 467,266.30 = 145,260.04 : x
  2. Step 2: Convert to fraction form
    311,472.04/467,266.30 = 145,260.04/x
  3. Step 3: Cross multiply
    311,472.04x = 467,266.30 × 145,260.04
  4. Step 4: Simplify right side
    311,472.04x = 67,875,121,428.65
  5. Step 5: Solve for x
    x = 67,875,121,428.65/311,472.04
  6. Step 6: Final answer
    x = 217,917.22

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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.