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Finding the Fourth Proportional to 351,274.38, 526,912.94 and 85,034.46

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Solution

The fourth proportional to 351,274.38, 526,912.94 and 85,034.46 is: 127,552.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,274.38 : 526,912.94 = 85,034.46 : x
  2. Step 2: Convert to fraction form
    351,274.38/526,912.94 = 85,034.46/x
  3. Step 3: Cross multiply
    351,274.38x = 526,912.94 × 85,034.46
  4. Step 4: Simplify right side
    351,274.38x = 44,805,757,319.91
  5. Step 5: Solve for x
    x = 44,805,757,319.91/351,274.38
  6. Step 6: Final answer
    x = 127,552.02

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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.