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Finding the Fourth Proportional to 330,601.80, 495,975.60 and 105,972.60

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Solution

The fourth proportional to 330,601.80, 495,975.60 and 105,972.60 is: 158,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,601.80 : 495,975.60 = 105,972.60 : x
  2. Step 2: Convert to fraction form
    330,601.80/495,975.60 = 105,972.60/x
  3. Step 3: Cross multiply
    330,601.80x = 495,975.60 × 105,972.60
  4. Step 4: Simplify right side
    330,601.80x = 52,559,823,868.56
  5. Step 5: Solve for x
    x = 52,559,823,868.56/330,601.80
  6. Step 6: Final answer
    x = 158,982.27

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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.