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Finding the Fourth Proportional to 227,991.28, 341,986.84 and 61,779.28

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Solution

The fourth proportional to 227,991.28, 341,986.84 and 61,779.28 is: 92,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,991.28 : 341,986.84 = 61,779.28 : x
  2. Step 2: Convert to fraction form
    227,991.28/341,986.84 = 61,779.28/x
  3. Step 3: Cross multiply
    227,991.28x = 341,986.84 × 61,779.28
  4. Step 4: Simplify right side
    227,991.28x = 21,127,700,744.68
  5. Step 5: Solve for x
    x = 21,127,700,744.68/227,991.28
  6. Step 6: Final answer
    x = 92,668.90

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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.