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Finding the Fourth Proportional to 228,711.40, 343,067.10 and 154,061.80

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Solution

The fourth proportional to 228,711.40, 343,067.10 and 154,061.80 is: 231,092.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,711.40 : 343,067.10 = 154,061.80 : x
  2. Step 2: Convert to fraction form
    228,711.40/343,067.10 = 154,061.80/x
  3. Step 3: Cross multiply
    228,711.40x = 343,067.10 × 154,061.80
  4. Step 4: Simplify right side
    228,711.40x = 52,853,534,946.78
  5. Step 5: Solve for x
    x = 52,853,534,946.78/228,711.40
  6. Step 6: Final answer
    x = 231,092.70

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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.