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Finding the Fourth Proportional to 192,570.77, 288,855.90 and 74,159.07

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Solution

The fourth proportional to 192,570.77, 288,855.90 and 74,159.07 is: 111,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,570.77 : 288,855.90 = 74,159.07 : x
  2. Step 2: Convert to fraction form
    192,570.77/288,855.90 = 74,159.07/x
  3. Step 3: Cross multiply
    192,570.77x = 288,855.90 × 74,159.07
  4. Step 4: Simplify right side
    192,570.77x = 21,421,284,908.01
  5. Step 5: Solve for x
    x = 21,421,284,908.01/192,570.77
  6. Step 6: Final answer
    x = 111,238.51

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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.