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Finding the Fourth Proportional to 330,796.34, 495,969.95 and 168,291

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Solution

The fourth proportional to 330,796.34, 495,969.95 and 168,291 is: 252,322.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,796.34 : 495,969.95 = 168,291 : x
  2. Step 2: Convert to fraction form
    330,796.34/495,969.95 = 168,291/x
  3. Step 3: Cross multiply
    330,796.34x = 495,969.95 × 168,291
  4. Step 4: Simplify right side
    330,796.34x = 83,467,278,855.45
  5. Step 5: Solve for x
    x = 83,467,278,855.45/330,796.34
  6. Step 6: Final answer
    x = 252,322.26

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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.