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Finding the Fourth Proportional to 264,317.52, 396,472.80 and 64,639.56

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Solution

The fourth proportional to 264,317.52, 396,472.80 and 64,639.56 is: 96,958.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,317.52 : 396,472.80 = 64,639.56 : x
  2. Step 2: Convert to fraction form
    264,317.52/396,472.80 = 64,639.56/x
  3. Step 3: Cross multiply
    264,317.52x = 396,472.80 × 64,639.56
  4. Step 4: Simplify right side
    264,317.52x = 25,627,827,343.97
  5. Step 5: Solve for x
    x = 25,627,827,343.97/264,317.52
  6. Step 6: Final answer
    x = 96,958.49

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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.