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Finding the Fourth Proportional to 182,403.90, 273,022.65 and 129,915.90

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Solution

The fourth proportional to 182,403.90, 273,022.65 and 129,915.90 is: 194,458.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,403.90 : 273,022.65 = 129,915.90 : x
  2. Step 2: Convert to fraction form
    182,403.90/273,022.65 = 129,915.90/x
  3. Step 3: Cross multiply
    182,403.90x = 273,022.65 × 129,915.90
  4. Step 4: Simplify right side
    182,403.90x = 35,469,983,295.14
  5. Step 5: Solve for x
    x = 35,469,983,295.14/182,403.90
  6. Step 6: Final answer
    x = 194,458.47

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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.