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Finding the Fourth Proportional to 205,937.40, 308,906.10 and 161,700.60

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Solution

The fourth proportional to 205,937.40, 308,906.10 and 161,700.60 is: 242,550.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,937.40 : 308,906.10 = 161,700.60 : x
  2. Step 2: Convert to fraction form
    205,937.40/308,906.10 = 161,700.60/x
  3. Step 3: Cross multiply
    205,937.40x = 308,906.10 × 161,700.60
  4. Step 4: Simplify right side
    205,937.40x = 49,950,301,713.66
  5. Step 5: Solve for x
    x = 49,950,301,713.66/205,937.40
  6. Step 6: Final answer
    x = 242,550.90

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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.