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Finding the Fourth Proportional to 104,401.63, 144,136.12 and 68,653.29

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Solution

The fourth proportional to 104,401.63, 144,136.12 and 68,653.29 is: 94,782.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,401.63 : 144,136.12 = 68,653.29 : x
  2. Step 2: Convert to fraction form
    104,401.63/144,136.12 = 68,653.29/x
  3. Step 3: Cross multiply
    104,401.63x = 144,136.12 × 68,653.29
  4. Step 4: Simplify right side
    104,401.63x = 9,895,418,845.83
  5. Step 5: Solve for x
    x = 9,895,418,845.83/104,401.63
  6. Step 6: Final answer
    x = 94,782.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.