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Finding the Fourth Proportional to 238,093.20, 357,139.80 and 228,907.80

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Solution

The fourth proportional to 238,093.20, 357,139.80 and 228,907.80 is: 343,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,093.20 : 357,139.80 = 228,907.80 : x
  2. Step 2: Convert to fraction form
    238,093.20/357,139.80 = 228,907.80/x
  3. Step 3: Cross multiply
    238,093.20x = 357,139.80 × 228,907.80
  4. Step 4: Simplify right side
    238,093.20x = 81,752,085,910.44
  5. Step 5: Solve for x
    x = 81,752,085,910.44/238,093.20
  6. Step 6: Final answer
    x = 343,361.70

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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.