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Finding the Fourth Proportional to 190,608.69, 263,071.50 and 105,753.09

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Solution

The fourth proportional to 190,608.69, 263,071.50 and 105,753.09 is: 145,956.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,608.69 : 263,071.50 = 105,753.09 : x
  2. Step 2: Convert to fraction form
    190,608.69/263,071.50 = 105,753.09/x
  3. Step 3: Cross multiply
    190,608.69x = 263,071.50 × 105,753.09
  4. Step 4: Simplify right side
    190,608.69x = 27,820,624,015.94
  5. Step 5: Solve for x
    x = 27,820,624,015.94/190,608.69
  6. Step 6: Final answer
    x = 145,956.75

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1.5x scale

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.