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Finding the Fourth Proportional to 167,825.80, 251,738.70 and 161,374.60

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Solution

The fourth proportional to 167,825.80, 251,738.70 and 161,374.60 is: 242,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,825.80 : 251,738.70 = 161,374.60 : x
  2. Step 2: Convert to fraction form
    167,825.80/251,738.70 = 161,374.60/x
  3. Step 3: Cross multiply
    167,825.80x = 251,738.70 × 161,374.60
  4. Step 4: Simplify right side
    167,825.80x = 40,624,232,017.02
  5. Step 5: Solve for x
    x = 40,624,232,017.02/167,825.80
  6. Step 6: Final answer
    x = 242,061.90

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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.