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Finding the Fourth Proportional to 201,728.69, 302,638.39 and 61,501.49

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Solution

The fourth proportional to 201,728.69, 302,638.39 and 61,501.49 is: 92,266.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,728.69 : 302,638.39 = 61,501.49 : x
  2. Step 2: Convert to fraction form
    201,728.69/302,638.39 = 61,501.49/x
  3. Step 3: Cross multiply
    201,728.69x = 302,638.39 × 61,501.49
  4. Step 4: Simplify right side
    201,728.69x = 18,612,710,249.26
  5. Step 5: Solve for x
    x = 18,612,710,249.26/201,728.69
  6. Step 6: Final answer
    x = 92,266.06

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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.