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Finding the Fourth Proportional to 144,668.64, 217,002.99 and 39,490.44

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Solution

The fourth proportional to 144,668.64, 217,002.99 and 39,490.44 is: 59,235.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,668.64 : 217,002.99 = 39,490.44 : x
  2. Step 2: Convert to fraction form
    144,668.64/217,002.99 = 39,490.44/x
  3. Step 3: Cross multiply
    144,668.64x = 217,002.99 × 39,490.44
  4. Step 4: Simplify right side
    144,668.64x = 8,569,543,556.42
  5. Step 5: Solve for x
    x = 8,569,543,556.42/144,668.64
  6. Step 6: Final answer
    x = 59,235.67

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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.