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Finding the Fourth Proportional to 196,901.80, 294,915.30 and 161,909.80

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Solution

The fourth proportional to 196,901.80, 294,915.30 and 161,909.80 is: 242,505.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,901.80 : 294,915.30 = 161,909.80 : x
  2. Step 2: Convert to fraction form
    196,901.80/294,915.30 = 161,909.80/x
  3. Step 3: Cross multiply
    196,901.80x = 294,915.30 × 161,909.80
  4. Step 4: Simplify right side
    196,901.80x = 47,749,677,239.94
  5. Step 5: Solve for x
    x = 47,749,677,239.94/196,901.80
  6. Step 6: Final answer
    x = 242,505.03

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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.