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Finding the Fourth Proportional to 201,699.57, 302,549.40 and 68,675.34

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Solution

The fourth proportional to 201,699.57, 302,549.40 and 68,675.34 is: 103,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,699.57 : 302,549.40 = 68,675.34 : x
  2. Step 2: Convert to fraction form
    201,699.57/302,549.40 = 68,675.34/x
  3. Step 3: Cross multiply
    201,699.57x = 302,549.40 × 68,675.34
  4. Step 4: Simplify right side
    201,699.57x = 20,777,682,911.80
  5. Step 5: Solve for x
    x = 20,777,682,911.80/201,699.57
  6. Step 6: Final answer
    x = 103,013.03

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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.