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Finding the Fourth Proportional to 231,468.80, 347,548.80 and 161,657.60

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Solution

The fourth proportional to 231,468.80, 347,548.80 and 161,657.60 is: 242,727.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,468.80 : 347,548.80 = 161,657.60 : x
  2. Step 2: Convert to fraction form
    231,468.80/347,548.80 = 161,657.60/x
  3. Step 3: Cross multiply
    231,468.80x = 347,548.80 × 161,657.60
  4. Step 4: Simplify right side
    231,468.80x = 56,183,904,890.88
  5. Step 5: Solve for x
    x = 56,183,904,890.88/231,468.80
  6. Step 6: Final answer
    x = 242,727.77

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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.