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Finding the Fourth Proportional to 156,611, 234,917.04 and 45,803

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Solution

The fourth proportional to 156,611, 234,917.04 and 45,803 is: 68,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,611 : 234,917.04 = 45,803 : x
  2. Step 2: Convert to fraction form
    156,611/234,917.04 = 45,803/x
  3. Step 3: Cross multiply
    156,611x = 234,917.04 × 45,803
  4. Step 4: Simplify right side
    156,611x = 10,759,905,183.12
  5. Step 5: Solve for x
    x = 10,759,905,183.12/156,611
  6. Step 6: Final answer
    x = 68,704.66

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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.