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Finding the Fourth Proportional to 67,226.69, 100,816.45 and 19,829.17

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Solution

The fourth proportional to 67,226.69, 100,816.45 and 19,829.17 is: 29,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,226.69 : 100,816.45 = 19,829.17 : x
  2. Step 2: Convert to fraction form
    67,226.69/100,816.45 = 19,829.17/x
  3. Step 3: Cross multiply
    67,226.69x = 100,816.45 × 19,829.17
  4. Step 4: Simplify right side
    67,226.69x = 1,999,106,602.29
  5. Step 5: Solve for x
    x = 1,999,106,602.29/67,226.69
  6. Step 6: Final answer
    x = 29,736.80

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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.