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Finding the Fourth Proportional to 234,647.85, 351,940.55 and 66,181.71

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Solution

The fourth proportional to 234,647.85, 351,940.55 and 66,181.71 is: 99,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,647.85 : 351,940.55 = 66,181.71 : x
  2. Step 2: Convert to fraction form
    234,647.85/351,940.55 = 66,181.71/x
  3. Step 3: Cross multiply
    234,647.85x = 351,940.55 × 66,181.71
  4. Step 4: Simplify right side
    234,647.85x = 23,292,025,657.64
  5. Step 5: Solve for x
    x = 23,292,025,657.64/234,647.85
  6. Step 6: Final answer
    x = 99,263.75

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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.