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Finding the Fourth Proportional to 217,395.84, 325,612 and 167,105.60

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Solution

The fourth proportional to 217,395.84, 325,612 and 167,105.60 is: 250,288.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,395.84 : 325,612 = 167,105.60 : x
  2. Step 2: Convert to fraction form
    217,395.84/325,612 = 167,105.60/x
  3. Step 3: Cross multiply
    217,395.84x = 325,612 × 167,105.60
  4. Step 4: Simplify right side
    217,395.84x = 54,411,588,627.20
  5. Step 5: Solve for x
    x = 54,411,588,627.20/217,395.84
  6. Step 6: Final answer
    x = 250,288.09

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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.