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Finding the Fourth Proportional to 190,599, 263,027.85 and 105,716.28

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Solution

The fourth proportional to 190,599, 263,027.85 and 105,716.28 is: 145,889.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,599 : 263,027.85 = 105,716.28 : x
  2. Step 2: Convert to fraction form
    190,599/263,027.85 = 105,716.28/x
  3. Step 3: Cross multiply
    190,599x = 263,027.85 × 105,716.28
  4. Step 4: Simplify right side
    190,599x = 27,806,325,838.40
  5. Step 5: Solve for x
    x = 27,806,325,838.40/190,599
  6. Step 6: Final answer
    x = 145,889.15

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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.