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Finding the Fourth Proportional to 190,274.56, 285,427.68 and 63,908.80

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Solution

The fourth proportional to 190,274.56, 285,427.68 and 63,908.80 is: 95,868.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,274.56 : 285,427.68 = 63,908.80 : x
  2. Step 2: Convert to fraction form
    190,274.56/285,427.68 = 63,908.80/x
  3. Step 3: Cross multiply
    190,274.56x = 285,427.68 × 63,908.80
  4. Step 4: Simplify right side
    190,274.56x = 18,241,340,515.58
  5. Step 5: Solve for x
    x = 18,241,340,515.58/190,274.56
  6. Step 6: Final answer
    x = 95,868.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.