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Finding the Fourth Proportional to 190,754.92, 263,254.08 and 105,871.98

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Solution

The fourth proportional to 190,754.92, 263,254.08 and 105,871.98 is: 146,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,754.92 : 263,254.08 = 105,871.98 : x
  2. Step 2: Convert to fraction form
    190,754.92/263,254.08 = 105,871.98/x
  3. Step 3: Cross multiply
    190,754.92x = 263,254.08 × 105,871.98
  4. Step 4: Simplify right side
    190,754.92x = 27,871,230,692.68
  5. Step 5: Solve for x
    x = 27,871,230,692.68/190,754.92
  6. Step 6: Final answer
    x = 146,110.15

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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.