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Finding the Fourth Proportional to 69,390.54, 104,127.34 and 63,743.98

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Solution

The fourth proportional to 69,390.54, 104,127.34 and 63,743.98 is: 95,654.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,390.54 : 104,127.34 = 63,743.98 : x
  2. Step 2: Convert to fraction form
    69,390.54/104,127.34 = 63,743.98/x
  3. Step 3: Cross multiply
    69,390.54x = 104,127.34 × 63,743.98
  4. Step 4: Simplify right side
    69,390.54x = 6,637,491,078.41
  5. Step 5: Solve for x
    x = 6,637,491,078.41/69,390.54
  6. Step 6: Final answer
    x = 95,654.12

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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.