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Finding the Fourth Proportional to 201,644.70, 302,495.85 and 68,531.10

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Solution

The fourth proportional to 201,644.70, 302,495.85 and 68,531.10 is: 102,806.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,644.70 : 302,495.85 = 68,531.10 : x
  2. Step 2: Convert to fraction form
    201,644.70/302,495.85 = 68,531.10/x
  3. Step 3: Cross multiply
    201,644.70x = 302,495.85 × 68,531.10
  4. Step 4: Simplify right side
    201,644.70x = 20,730,373,345.94
  5. Step 5: Solve for x
    x = 20,730,373,345.94/201,644.70
  6. Step 6: Final answer
    x = 102,806.44

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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.