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Finding the Fourth Proportional to 219,846.49, 329,658.85 and 156,630.49

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Solution

The fourth proportional to 219,846.49, 329,658.85 and 156,630.49 is: 234,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,846.49 : 329,658.85 = 156,630.49 : x
  2. Step 2: Convert to fraction form
    219,846.49/329,658.85 = 156,630.49/x
  3. Step 3: Cross multiply
    219,846.49x = 329,658.85 × 156,630.49
  4. Step 4: Simplify right side
    219,846.49x = 51,634,627,208.34
  5. Step 5: Solve for x
    x = 51,634,627,208.34/219,846.49
  6. Step 6: Final answer
    x = 234,866.73

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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.