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Finding the Fourth Proportional to 201,954.72, 302,786.26 and 61,636.80

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Solution

The fourth proportional to 201,954.72, 302,786.26 and 61,636.80 is: 92,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,954.72 : 302,786.26 = 61,636.80 : x
  2. Step 2: Convert to fraction form
    201,954.72/302,786.26 = 61,636.80/x
  3. Step 3: Cross multiply
    201,954.72x = 302,786.26 × 61,636.80
  4. Step 4: Simplify right side
    201,954.72x = 18,662,776,150.37
  5. Step 5: Solve for x
    x = 18,662,776,150.37/201,954.72
  6. Step 6: Final answer
    x = 92,410.70

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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.