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Finding the Fourth Proportional to 69,901.35, 104,764.59 and 55,051.62

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Solution

The fourth proportional to 69,901.35, 104,764.59 and 55,051.62 is: 82,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,901.35 : 104,764.59 = 55,051.62 : x
  2. Step 2: Convert to fraction form
    69,901.35/104,764.59 = 55,051.62/x
  3. Step 3: Cross multiply
    69,901.35x = 104,764.59 × 55,051.62
  4. Step 4: Simplify right side
    69,901.35x = 5,767,460,398.14
  5. Step 5: Solve for x
    x = 5,767,460,398.14/69,901.35
  6. Step 6: Final answer
    x = 82,508.57

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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.