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Finding the Fourth Proportional to 156,149, 234,229.98 and 45,341

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Solution

The fourth proportional to 156,149, 234,229.98 and 45,341 is: 68,013.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,149 : 234,229.98 = 45,341 : x
  2. Step 2: Convert to fraction form
    156,149/234,229.98 = 45,341/x
  3. Step 3: Cross multiply
    156,149x = 234,229.98 × 45,341
  4. Step 4: Simplify right side
    156,149x = 10,620,221,523.18
  5. Step 5: Solve for x
    x = 10,620,221,523.18/156,149
  6. Step 6: Final answer
    x = 68,013.38

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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.