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Finding the Fourth Proportional to 201,337.25, 302,021.33 and 66,348.81

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Solution

The fourth proportional to 201,337.25, 302,021.33 and 66,348.81 is: 99,528.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,337.25 : 302,021.33 = 66,348.81 : x
  2. Step 2: Convert to fraction form
    201,337.25/302,021.33 = 66,348.81/x
  3. Step 3: Cross multiply
    201,337.25x = 302,021.33 × 66,348.81
  4. Step 4: Simplify right side
    201,337.25x = 20,038,755,508.37
  5. Step 5: Solve for x
    x = 20,038,755,508.37/201,337.25
  6. Step 6: Final answer
    x = 99,528.31

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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.