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Finding the Fourth Proportional to 190,716.90, 263,201.64 and 105,833.96

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Solution

The fourth proportional to 190,716.90, 263,201.64 and 105,833.96 is: 146,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,716.90 : 263,201.64 = 105,833.96 : x
  2. Step 2: Convert to fraction form
    190,716.90/263,201.64 = 105,833.96/x
  3. Step 3: Cross multiply
    190,716.90x = 263,201.64 × 105,833.96
  4. Step 4: Simplify right side
    190,716.90x = 27,855,671,113.82
  5. Step 5: Solve for x
    x = 27,855,671,113.82/190,716.90
  6. Step 6: Final answer
    x = 146,057.70

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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.