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Finding the Fourth Proportional to 201,859.76, 303,057.48 and 172,466.48

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Solution

The fourth proportional to 201,859.76, 303,057.48 and 172,466.48 is: 258,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,859.76 : 303,057.48 = 172,466.48 : x
  2. Step 2: Convert to fraction form
    201,859.76/303,057.48 = 172,466.48/x
  3. Step 3: Cross multiply
    201,859.76x = 303,057.48 × 172,466.48
  4. Step 4: Simplify right side
    201,859.76x = 52,267,256,813.27
  5. Step 5: Solve for x
    x = 52,267,256,813.27/201,859.76
  6. Step 6: Final answer
    x = 258,928.56

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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.