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Finding the Fourth Proportional to 352,855.72, 529,282.50 and 142,491.16

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Solution

The fourth proportional to 352,855.72, 529,282.50 and 142,491.16 is: 213,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,855.72 : 529,282.50 = 142,491.16 : x
  2. Step 2: Convert to fraction form
    352,855.72/529,282.50 = 142,491.16/x
  3. Step 3: Cross multiply
    352,855.72x = 529,282.50 × 142,491.16
  4. Step 4: Simplify right side
    352,855.72x = 75,418,077,392.70
  5. Step 5: Solve for x
    x = 75,418,077,392.70/352,855.72
  6. Step 6: Final answer
    x = 213,736.30

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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.