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Finding the Fourth Proportional to 143,955.44, 198,722.21 and 92,993.02

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Solution

The fourth proportional to 143,955.44, 198,722.21 and 92,993.02 is: 128,371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,955.44 : 198,722.21 = 92,993.02 : x
  2. Step 2: Convert to fraction form
    143,955.44/198,722.21 = 92,993.02/x
  3. Step 3: Cross multiply
    143,955.44x = 198,722.21 × 92,993.02
  4. Step 4: Simplify right side
    143,955.44x = 18,479,778,929.86
  5. Step 5: Solve for x
    x = 18,479,778,929.86/143,955.44
  6. Step 6: Final answer
    x = 128,371.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.