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Finding the Fourth Proportional to 192,081.51, 288,136.26 and 73,752.89

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Solution

The fourth proportional to 192,081.51, 288,136.26 and 73,752.89 is: 110,634.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,081.51 : 288,136.26 = 73,752.89 : x
  2. Step 2: Convert to fraction form
    192,081.51/288,136.26 = 73,752.89/x
  3. Step 3: Cross multiply
    192,081.51x = 288,136.26 × 73,752.89
  4. Step 4: Simplify right side
    192,081.51x = 21,250,880,448.11
  5. Step 5: Solve for x
    x = 21,250,880,448.11/192,081.51
  6. Step 6: Final answer
    x = 110,634.70

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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.