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Finding the Fourth Proportional to 131,323.20, 196,693.20 and 101,644.80

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Solution

The fourth proportional to 131,323.20, 196,693.20 and 101,644.80 is: 152,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,323.20 : 196,693.20 = 101,644.80 : x
  2. Step 2: Convert to fraction form
    131,323.20/196,693.20 = 101,644.80/x
  3. Step 3: Cross multiply
    131,323.20x = 196,693.20 × 101,644.80
  4. Step 4: Simplify right side
    131,323.20x = 19,992,840,975.36
  5. Step 5: Solve for x
    x = 19,992,840,975.36/131,323.20
  6. Step 6: Final answer
    x = 152,241.50

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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.