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Finding the Fourth Proportional to 178,336.83, 267,540.21 and 66,017.91

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Solution

The fourth proportional to 178,336.83, 267,540.21 and 66,017.91 is: 99,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,336.83 : 267,540.21 = 66,017.91 : x
  2. Step 2: Convert to fraction form
    178,336.83/267,540.21 = 66,017.91/x
  3. Step 3: Cross multiply
    178,336.83x = 267,540.21 × 66,017.91
  4. Step 4: Simplify right side
    178,336.83x = 17,662,445,505.16
  5. Step 5: Solve for x
    x = 17,662,445,505.16/178,336.83
  6. Step 6: Final answer
    x = 99,039.81

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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.