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Finding the Fourth Proportional to 488,915.56, 733,373.96 and 133,932.66

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Solution

The fourth proportional to 488,915.56, 733,373.96 and 133,932.66 is: 200,899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,915.56 : 733,373.96 = 133,932.66 : x
  2. Step 2: Convert to fraction form
    488,915.56/733,373.96 = 133,932.66/x
  3. Step 3: Cross multiply
    488,915.56x = 733,373.96 × 133,932.66
  4. Step 4: Simplify right side
    488,915.56x = 98,222,725,237.53
  5. Step 5: Solve for x
    x = 98,222,725,237.53/488,915.56
  6. Step 6: Final answer
    x = 200,899.16

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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.