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Finding the Fourth Proportional to 190,892.61, 263,563.61 and 119,304.81

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Solution

The fourth proportional to 190,892.61, 263,563.61 and 119,304.81 is: 164,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,892.61 : 263,563.61 = 119,304.81 : x
  2. Step 2: Convert to fraction form
    190,892.61/263,563.61 = 119,304.81/x
  3. Step 3: Cross multiply
    190,892.61x = 263,563.61 × 119,304.81
  4. Step 4: Simplify right side
    190,892.61x = 31,444,405,817.44
  5. Step 5: Solve for x
    x = 31,444,405,817.44/190,892.61
  6. Step 6: Final answer
    x = 164,723.01

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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.