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Finding the Fourth Proportional to 321,048.91, 481,578.08 and 152,586.43

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Solution

The fourth proportional to 321,048.91, 481,578.08 and 152,586.43 is: 228,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,048.91 : 481,578.08 = 152,586.43 : x
  2. Step 2: Convert to fraction form
    321,048.91/481,578.08 = 152,586.43/x
  3. Step 3: Cross multiply
    321,048.91x = 481,578.08 × 152,586.43
  4. Step 4: Simplify right side
    321,048.91x = 73,482,277,585.56
  5. Step 5: Solve for x
    x = 73,482,277,585.56/321,048.91
  6. Step 6: Final answer
    x = 228,881.88

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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.