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Finding the Fourth Proportional to 104,720.92, 155,896.89 and 104,098.13

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Solution

The fourth proportional to 104,720.92, 155,896.89 and 104,098.13 is: 154,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,720.92 : 155,896.89 = 104,098.13 : x
  2. Step 2: Convert to fraction form
    104,720.92/155,896.89 = 104,098.13/x
  3. Step 3: Cross multiply
    104,720.92x = 155,896.89 × 104,098.13
  4. Step 4: Simplify right side
    104,720.92x = 16,228,574,136.58
  5. Step 5: Solve for x
    x = 16,228,574,136.58/104,720.92
  6. Step 6: Final answer
    x = 154,969.75

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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.