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Finding the Fourth Proportional to 69,670.33, 104,405.86 and 55,672.92

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Solution

The fourth proportional to 69,670.33, 104,405.86 and 55,672.92 is: 83,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,670.33 : 104,405.86 = 55,672.92 : x
  2. Step 2: Convert to fraction form
    69,670.33/104,405.86 = 55,672.92/x
  3. Step 3: Cross multiply
    69,670.33x = 104,405.86 × 55,672.92
  4. Step 4: Simplify right side
    69,670.33x = 5,812,579,160.90
  5. Step 5: Solve for x
    x = 5,812,579,160.90/69,670.33
  6. Step 6: Final answer
    x = 83,429.77

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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.