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Finding the Fourth Proportional to 325,751.10, 488,237.85 and 136,211.10

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Solution

The fourth proportional to 325,751.10, 488,237.85 and 136,211.10 is: 204,154.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,751.10 : 488,237.85 = 136,211.10 : x
  2. Step 2: Convert to fraction form
    325,751.10/488,237.85 = 136,211.10/x
  3. Step 3: Cross multiply
    325,751.10x = 488,237.85 × 136,211.10
  4. Step 4: Simplify right side
    325,751.10x = 66,503,414,610.14
  5. Step 5: Solve for x
    x = 66,503,414,610.14/325,751.10
  6. Step 6: Final answer
    x = 204,154.08

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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.