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Finding the Fourth Proportional to 104,882.80, 144,715.26 and 68,592.64

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Solution

The fourth proportional to 104,882.80, 144,715.26 and 68,592.64 is: 94,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,882.80 : 144,715.26 = 68,592.64 : x
  2. Step 2: Convert to fraction form
    104,882.80/144,715.26 = 68,592.64/x
  3. Step 3: Cross multiply
    104,882.80x = 144,715.26 × 68,592.64
  4. Step 4: Simplify right side
    104,882.80x = 9,926,401,731.69
  5. Step 5: Solve for x
    x = 9,926,401,731.69/104,882.80
  6. Step 6: Final answer
    x = 94,642.80

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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.