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Finding the Fourth Proportional to 199,818.65, 299,469.60 and 149,503.98

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Solution

The fourth proportional to 199,818.65, 299,469.60 and 149,503.98 is: 224,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,818.65 : 299,469.60 = 149,503.98 : x
  2. Step 2: Convert to fraction form
    199,818.65/299,469.60 = 149,503.98/x
  3. Step 3: Cross multiply
    199,818.65x = 299,469.60 × 149,503.98
  4. Step 4: Simplify right side
    199,818.65x = 44,771,895,591.66
  5. Step 5: Solve for x
    x = 44,771,895,591.66/199,818.65
  6. Step 6: Final answer
    x = 224,062.65

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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.