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Finding the Fourth Proportional to 228,787.46, 315,745.59 and 126,844.90

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Solution

The fourth proportional to 228,787.46, 315,745.59 and 126,844.90 is: 175,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,787.46 : 315,745.59 = 126,844.90 : x
  2. Step 2: Convert to fraction form
    228,787.46/315,745.59 = 126,844.90/x
  3. Step 3: Cross multiply
    228,787.46x = 315,745.59 × 126,844.90
  4. Step 4: Simplify right side
    228,787.46x = 40,050,717,788.99
  5. Step 5: Solve for x
    x = 40,050,717,788.99/228,787.46
  6. Step 6: Final answer
    x = 175,056.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.