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Finding the Fourth Proportional to 192,729.64, 288,673.44 and 80,068.27

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Solution

The fourth proportional to 192,729.64, 288,673.44 and 80,068.27 is: 119,927.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,729.64 : 288,673.44 = 80,068.27 : x
  2. Step 2: Convert to fraction form
    192,729.64/288,673.44 = 80,068.27/x
  3. Step 3: Cross multiply
    192,729.64x = 288,673.44 × 80,068.27
  4. Step 4: Simplify right side
    192,729.64x = 23,113,581,913.81
  5. Step 5: Solve for x
    x = 23,113,581,913.81/192,729.64
  6. Step 6: Final answer
    x = 119,927.49

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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.