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Finding the Fourth Proportional to 336,481.38, 504,812.79 and 111,878.10

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Solution

The fourth proportional to 336,481.38, 504,812.79 and 111,878.10 is: 167,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,481.38 : 504,812.79 = 111,878.10 : x
  2. Step 2: Convert to fraction form
    336,481.38/504,812.79 = 111,878.10/x
  3. Step 3: Cross multiply
    336,481.38x = 504,812.79 × 111,878.10
  4. Step 4: Simplify right side
    336,481.38x = 56,477,495,800.90
  5. Step 5: Solve for x
    x = 56,477,495,800.90/336,481.38
  6. Step 6: Final answer
    x = 167,847.31

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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.