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Finding the Fourth Proportional to 69,701.29, 96,184.64 and 39,485.99

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Solution

The fourth proportional to 69,701.29, 96,184.64 and 39,485.99 is: 54,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,701.29 : 96,184.64 = 39,485.99 : x
  2. Step 2: Convert to fraction form
    69,701.29/96,184.64 = 39,485.99/x
  3. Step 3: Cross multiply
    69,701.29x = 96,184.64 × 39,485.99
  4. Step 4: Simplify right side
    69,701.29x = 3,797,945,776.23
  5. Step 5: Solve for x
    x = 3,797,945,776.23/69,701.29
  6. Step 6: Final answer
    x = 54,488.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.