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Finding the Fourth Proportional to 231,611.80, 346,899.30 and 178,850.20

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Solution

The fourth proportional to 231,611.80, 346,899.30 and 178,850.20 is: 267,874.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,611.80 : 346,899.30 = 178,850.20 : x
  2. Step 2: Convert to fraction form
    231,611.80/346,899.30 = 178,850.20/x
  3. Step 3: Cross multiply
    231,611.80x = 346,899.30 × 178,850.20
  4. Step 4: Simplify right side
    231,611.80x = 62,043,009,184.86
  5. Step 5: Solve for x
    x = 62,043,009,184.86/231,611.80
  6. Step 6: Final answer
    x = 267,874.99

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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.