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Finding the Fourth Proportional to 104,201.62, 156,302.43 and 69,209.62

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Solution

The fourth proportional to 104,201.62, 156,302.43 and 69,209.62 is: 103,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,201.62 : 156,302.43 = 69,209.62 : x
  2. Step 2: Convert to fraction form
    104,201.62/156,302.43 = 69,209.62/x
  3. Step 3: Cross multiply
    104,201.62x = 156,302.43 × 69,209.62
  4. Step 4: Simplify right side
    104,201.62x = 10,817,631,785.38
  5. Step 5: Solve for x
    x = 10,817,631,785.38/104,201.62
  6. Step 6: Final answer
    x = 103,814.43

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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.