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Finding the Fourth Proportional to 140,790.13, 194,260.13 and 83,447.39

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Solution

The fourth proportional to 140,790.13, 194,260.13 and 83,447.39 is: 115,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,790.13 : 194,260.13 = 83,447.39 : x
  2. Step 2: Convert to fraction form
    140,790.13/194,260.13 = 83,447.39/x
  3. Step 3: Cross multiply
    140,790.13x = 194,260.13 × 83,447.39
  4. Step 4: Simplify right side
    140,790.13x = 16,210,500,829.56
  5. Step 5: Solve for x
    x = 16,210,500,829.56/140,790.13
  6. Step 6: Final answer
    x = 115,139.47

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