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Finding the Fourth Proportional to 192,775.83, 288,963.27 and 74,528.39

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Solution

The fourth proportional to 192,775.83, 288,963.27 and 74,528.39 is: 111,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,775.83 : 288,963.27 = 74,528.39 : x
  2. Step 2: Convert to fraction form
    192,775.83/288,963.27 = 74,528.39/x
  3. Step 3: Cross multiply
    192,775.83x = 288,963.27 × 74,528.39
  4. Step 4: Simplify right side
    192,775.83x = 21,535,967,282.24
  5. Step 5: Solve for x
    x = 21,535,967,282.24/192,775.83
  6. Step 6: Final answer
    x = 111,715.08

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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.