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Finding the Fourth Proportional to 253,155.44, 379,790.76 and 134,764.40

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Solution

The fourth proportional to 253,155.44, 379,790.76 and 134,764.40 is: 202,177.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,155.44 : 379,790.76 = 134,764.40 : x
  2. Step 2: Convert to fraction form
    253,155.44/379,790.76 = 134,764.40/x
  3. Step 3: Cross multiply
    253,155.44x = 379,790.76 × 134,764.40
  4. Step 4: Simplify right side
    253,155.44x = 51,182,273,896.94
  5. Step 5: Solve for x
    x = 51,182,273,896.94/253,155.44
  6. Step 6: Final answer
    x = 202,177.26

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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.