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Finding the Fourth Proportional to 251,711.01, 377,415.90 and 170,757.54

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Solution

The fourth proportional to 251,711.01, 377,415.90 and 170,757.54 is: 256,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,711.01 : 377,415.90 = 170,757.54 : x
  2. Step 2: Convert to fraction form
    251,711.01/377,415.90 = 170,757.54/x
  3. Step 3: Cross multiply
    251,711.01x = 377,415.90 × 170,757.54
  4. Step 4: Simplify right side
    251,711.01x = 64,446,610,640.89
  5. Step 5: Solve for x
    x = 64,446,610,640.89/251,711.01
  6. Step 6: Final answer
    x = 256,034.13

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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.