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Finding the Fourth Proportional to 351,967.52, 528,049.70 and 115,476.28

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Solution

The fourth proportional to 351,967.52, 528,049.70 and 115,476.28 is: 173,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,967.52 : 528,049.70 = 115,476.28 : x
  2. Step 2: Convert to fraction form
    351,967.52/528,049.70 = 115,476.28/x
  3. Step 3: Cross multiply
    351,967.52x = 528,049.70 × 115,476.28
  4. Step 4: Simplify right side
    351,967.52x = 60,977,213,546.65
  5. Step 5: Solve for x
    x = 60,977,213,546.65/351,967.52
  6. Step 6: Final answer
    x = 173,246.71

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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.