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Finding the Fourth Proportional to 228,039.98, 341,592.90 and 127,990.09

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Solution

The fourth proportional to 228,039.98, 341,592.90 and 127,990.09 is: 191,722.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,039.98 : 341,592.90 = 127,990.09 : x
  2. Step 2: Convert to fraction form
    228,039.98/341,592.90 = 127,990.09/x
  3. Step 3: Cross multiply
    228,039.98x = 341,592.90 × 127,990.09
  4. Step 4: Simplify right side
    228,039.98x = 43,720,505,961.39
  5. Step 5: Solve for x
    x = 43,720,505,961.39/228,039.98
  6. Step 6: Final answer
    x = 191,722.99

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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.