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Finding the Fourth Proportional to 69,896.10, 104,337.39 and 64,692.87

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Solution

The fourth proportional to 69,896.10, 104,337.39 and 64,692.87 is: 96,570.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,896.10 : 104,337.39 = 64,692.87 : x
  2. Step 2: Convert to fraction form
    69,896.10/104,337.39 = 64,692.87/x
  3. Step 3: Cross multiply
    69,896.10x = 104,337.39 × 64,692.87
  4. Step 4: Simplify right side
    69,896.10x = 6,749,885,207.41
  5. Step 5: Solve for x
    x = 6,749,885,207.41/69,896.10
  6. Step 6: Final answer
    x = 96,570.27

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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.