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Finding the Fourth Proportional to 201,446.76, 302,108.25 and 66,485.97

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Solution

The fourth proportional to 201,446.76, 302,108.25 and 66,485.97 is: 99,708.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,446.76 : 302,108.25 = 66,485.97 : x
  2. Step 2: Convert to fraction form
    201,446.76/302,108.25 = 66,485.97/x
  3. Step 3: Cross multiply
    201,446.76x = 302,108.25 × 66,485.97
  4. Step 4: Simplify right side
    201,446.76x = 20,085,960,046.25
  5. Step 5: Solve for x
    x = 20,085,960,046.25/201,446.76
  6. Step 6: Final answer
    x = 99,708.53

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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.