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Finding the Fourth Proportional to 431,933.52, 647,915.46 and 116,397.96

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Solution

The fourth proportional to 431,933.52, 647,915.46 and 116,397.96 is: 174,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,933.52 : 647,915.46 = 116,397.96 : x
  2. Step 2: Convert to fraction form
    431,933.52/647,915.46 = 116,397.96/x
  3. Step 3: Cross multiply
    431,933.52x = 647,915.46 × 116,397.96
  4. Step 4: Simplify right side
    431,933.52x = 75,416,037,796.46
  5. Step 5: Solve for x
    x = 75,416,037,796.46/431,933.52
  6. Step 6: Final answer
    x = 174,601.03

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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.