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Finding the Fourth Proportional to 144,888.88, 199,946.52 and 81,226.69

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Solution

The fourth proportional to 144,888.88, 199,946.52 and 81,226.69 is: 112,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,888.88 : 199,946.52 = 81,226.69 : x
  2. Step 2: Convert to fraction form
    144,888.88/199,946.52 = 81,226.69/x
  3. Step 3: Cross multiply
    144,888.88x = 199,946.52 × 81,226.69
  4. Step 4: Simplify right side
    144,888.88x = 16,240,993,996.62
  5. Step 5: Solve for x
    x = 16,240,993,996.62/144,888.88
  6. Step 6: Final answer
    x = 112,092.76

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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.