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Finding the Fourth Proportional to 167,235.40, 251,144.70 and 161,986.60

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Solution

The fourth proportional to 167,235.40, 251,144.70 and 161,986.60 is: 243,262.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,235.40 : 251,144.70 = 161,986.60 : x
  2. Step 2: Convert to fraction form
    167,235.40/251,144.70 = 161,986.60/x
  3. Step 3: Cross multiply
    167,235.40x = 251,144.70 × 161,986.60
  4. Step 4: Simplify right side
    167,235.40x = 40,682,076,061.02
  5. Step 5: Solve for x
    x = 40,682,076,061.02/167,235.40
  6. Step 6: Final answer
    x = 243,262.35

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1.5x scale

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.