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Finding the Fourth Proportional to 262,643.21, 393,333.51 and 149,982.33

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Solution

The fourth proportional to 262,643.21, 393,333.51 and 149,982.33 is: 224,612.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,643.21 : 393,333.51 = 149,982.33 : x
  2. Step 2: Convert to fraction form
    262,643.21/393,333.51 = 149,982.33/x
  3. Step 3: Cross multiply
    262,643.21x = 393,333.51 × 149,982.33
  4. Step 4: Simplify right side
    262,643.21x = 58,993,076,296.88
  5. Step 5: Solve for x
    x = 58,993,076,296.88/262,643.21
  6. Step 6: Final answer
    x = 224,612.99

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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.