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Finding the Fourth Proportional to 190,174.50, 285,295.80 and 63,855.90

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Solution

The fourth proportional to 190,174.50, 285,295.80 and 63,855.90 is: 95,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,174.50 : 285,295.80 = 63,855.90 : x
  2. Step 2: Convert to fraction form
    190,174.50/285,295.80 = 63,855.90/x
  3. Step 3: Cross multiply
    190,174.50x = 285,295.80 × 63,855.90
  4. Step 4: Simplify right side
    190,174.50x = 18,217,820,075.22
  5. Step 5: Solve for x
    x = 18,217,820,075.22/190,174.50
  6. Step 6: Final answer
    x = 95,795.28

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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.