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Finding the Fourth Proportional to 330,142.32, 495,069.27 and 116,839.34

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Solution

The fourth proportional to 330,142.32, 495,069.27 and 116,839.34 is: 175,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,142.32 : 495,069.27 = 116,839.34 : x
  2. Step 2: Convert to fraction form
    330,142.32/495,069.27 = 116,839.34/x
  3. Step 3: Cross multiply
    330,142.32x = 495,069.27 × 116,839.34
  4. Step 4: Simplify right side
    330,142.32x = 57,843,564,496.56
  5. Step 5: Solve for x
    x = 57,843,564,496.56/330,142.32
  6. Step 6: Final answer
    x = 175,207.97

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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.