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Finding the Fourth Proportional to 228,420.54, 341,885.61 and 206,595.90

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Solution

The fourth proportional to 228,420.54, 341,885.61 and 206,595.90 is: 309,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,420.54 : 341,885.61 = 206,595.90 : x
  2. Step 2: Convert to fraction form
    228,420.54/341,885.61 = 206,595.90/x
  3. Step 3: Cross multiply
    228,420.54x = 341,885.61 × 206,595.90
  4. Step 4: Simplify right side
    228,420.54x = 70,632,165,295.00
  5. Step 5: Solve for x
    x = 70,632,165,295.00/228,420.54
  6. Step 6: Final answer
    x = 309,219.85

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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.