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Finding the Fourth Proportional to 228,065.80, 341,709.90 and 188,408.20

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Solution

The fourth proportional to 228,065.80, 341,709.90 and 188,408.20 is: 282,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,065.80 : 341,709.90 = 188,408.20 : x
  2. Step 2: Convert to fraction form
    228,065.80/341,709.90 = 188,408.20/x
  3. Step 3: Cross multiply
    228,065.80x = 341,709.90 × 188,408.20
  4. Step 4: Simplify right side
    228,065.80x = 64,380,947,181.18
  5. Step 5: Solve for x
    x = 64,380,947,181.18/228,065.80
  6. Step 6: Final answer
    x = 282,291.11

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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.