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Finding the Fourth Proportional to 339,856.97, 509,840.53 and 112,084.56

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Solution

The fourth proportional to 339,856.97, 509,840.53 and 112,084.56 is: 168,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,856.97 : 509,840.53 = 112,084.56 : x
  2. Step 2: Convert to fraction form
    339,856.97/509,840.53 = 112,084.56/x
  3. Step 3: Cross multiply
    339,856.97x = 509,840.53 × 112,084.56
  4. Step 4: Simplify right side
    339,856.97x = 57,145,251,195.01
  5. Step 5: Solve for x
    x = 57,145,251,195.01/339,856.97
  6. Step 6: Final answer
    x = 168,145.01

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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.