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Finding the Fourth Proportional to 69,663.66, 104,481.51 and 34,109.66

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Solution

The fourth proportional to 69,663.66, 104,481.51 and 34,109.66 is: 51,157.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,663.66 : 104,481.51 = 34,109.66 : x
  2. Step 2: Convert to fraction form
    69,663.66/104,481.51 = 34,109.66/x
  3. Step 3: Cross multiply
    69,663.66x = 104,481.51 × 34,109.66
  4. Step 4: Simplify right side
    69,663.66x = 3,563,828,259.98
  5. Step 5: Solve for x
    x = 3,563,828,259.98/69,663.66
  6. Step 6: Final answer
    x = 51,157.64

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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.