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Finding the Fourth Proportional to 69,885.59, 104,321.72 and 64,682.35

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Solution

The fourth proportional to 69,885.59, 104,321.72 and 64,682.35 is: 96,554.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,885.59 : 104,321.72 = 64,682.35 : x
  2. Step 2: Convert to fraction form
    69,885.59/104,321.72 = 64,682.35/x
  3. Step 3: Cross multiply
    69,885.59x = 104,321.72 × 64,682.35
  4. Step 4: Simplify right side
    69,885.59x = 6,747,773,906.54
  5. Step 5: Solve for x
    x = 6,747,773,906.54/69,885.59
  6. Step 6: Final answer
    x = 96,554.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.