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Finding the Fourth Proportional to 192,506.16, 288,693.60 and 74,167.68

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Solution

The fourth proportional to 192,506.16, 288,693.60 and 74,167.68 is: 111,226.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,506.16 : 288,693.60 = 74,167.68 : x
  2. Step 2: Convert to fraction form
    192,506.16/288,693.60 = 74,167.68/x
  3. Step 3: Cross multiply
    192,506.16x = 288,693.60 × 74,167.68
  4. Step 4: Simplify right side
    192,506.16x = 21,411,734,542.85
  5. Step 5: Solve for x
    x = 21,411,734,542.85/192,506.16
  6. Step 6: Final answer
    x = 111,226.23

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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.