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Finding the Fourth Proportional to 467,391.25, 701,015.80 and 130,396.42

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Solution

The fourth proportional to 467,391.25, 701,015.80 and 130,396.42 is: 195,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,391.25 : 701,015.80 = 130,396.42 : x
  2. Step 2: Convert to fraction form
    467,391.25/701,015.80 = 130,396.42/x
  3. Step 3: Cross multiply
    467,391.25x = 701,015.80 × 130,396.42
  4. Step 4: Simplify right side
    467,391.25x = 91,409,950,683.44
  5. Step 5: Solve for x
    x = 91,409,950,683.44/467,391.25
  6. Step 6: Final answer
    x = 195,574.80

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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.