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Finding the Fourth Proportional to 133,668.70, 200,503.05 and 124,811.35

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Solution

The fourth proportional to 133,668.70, 200,503.05 and 124,811.35 is: 187,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,668.70 : 200,503.05 = 124,811.35 : x
  2. Step 2: Convert to fraction form
    133,668.70/200,503.05 = 124,811.35/x
  3. Step 3: Cross multiply
    133,668.70x = 200,503.05 × 124,811.35
  4. Step 4: Simplify right side
    133,668.70x = 25,025,056,349.62
  5. Step 5: Solve for x
    x = 25,025,056,349.62/133,668.70
  6. Step 6: Final answer
    x = 187,217.03

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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.