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Finding the Fourth Proportional to 156,701.90, 235,052.85 and 45,893.90

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Solution

The fourth proportional to 156,701.90, 235,052.85 and 45,893.90 is: 68,840.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,701.90 : 235,052.85 = 45,893.90 : x
  2. Step 2: Convert to fraction form
    156,701.90/235,052.85 = 45,893.90/x
  3. Step 3: Cross multiply
    156,701.90x = 235,052.85 × 45,893.90
  4. Step 4: Simplify right side
    156,701.90x = 10,787,491,992.62
  5. Step 5: Solve for x
    x = 10,787,491,992.62/156,701.90
  6. Step 6: Final answer
    x = 68,840.85

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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.