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Finding the Fourth Proportional to 468,481.72, 702,709.82 and 131,525.16

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Solution

The fourth proportional to 468,481.72, 702,709.82 and 131,525.16 is: 197,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,481.72 : 702,709.82 = 131,525.16 : x
  2. Step 2: Convert to fraction form
    468,481.72/702,709.82 = 131,525.16/x
  3. Step 3: Cross multiply
    468,481.72x = 702,709.82 × 131,525.16
  4. Step 4: Simplify right side
    468,481.72x = 92,424,021,509.07
  5. Step 5: Solve for x
    x = 92,424,021,509.07/468,481.72
  6. Step 6: Final answer
    x = 197,284.16

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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.