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Finding the Fourth Proportional to 140,193.36, 193,471.20 and 79,772.76

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Solution

The fourth proportional to 140,193.36, 193,471.20 and 79,772.76 is: 110,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,193.36 : 193,471.20 = 79,772.76 : x
  2. Step 2: Convert to fraction form
    140,193.36/193,471.20 = 79,772.76/x
  3. Step 3: Cross multiply
    140,193.36x = 193,471.20 × 79,772.76
  4. Step 4: Simplify right side
    140,193.36x = 15,433,731,604.51
  5. Step 5: Solve for x
    x = 15,433,731,604.51/140,193.36
  6. Step 6: Final answer
    x = 110,088.89

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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.