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Finding the Fourth Proportional to 201,287.52, 302,017.50 and 68,181.84

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Solution

The fourth proportional to 201,287.52, 302,017.50 and 68,181.84 is: 102,301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,287.52 : 302,017.50 = 68,181.84 : x
  2. Step 2: Convert to fraction form
    201,287.52/302,017.50 = 68,181.84/x
  3. Step 3: Cross multiply
    201,287.52x = 302,017.50 × 68,181.84
  4. Step 4: Simplify right side
    201,287.52x = 20,592,108,862.20
  5. Step 5: Solve for x
    x = 20,592,108,862.20/201,287.52
  6. Step 6: Final answer
    x = 102,301.97

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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.