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Finding the Fourth Proportional to 244,644.80, 366,967.20 and 139,668.80

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Solution

The fourth proportional to 244,644.80, 366,967.20 and 139,668.80 is: 209,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,644.80 : 366,967.20 = 139,668.80 : x
  2. Step 2: Convert to fraction form
    244,644.80/366,967.20 = 139,668.80/x
  3. Step 3: Cross multiply
    244,644.80x = 366,967.20 × 139,668.80
  4. Step 4: Simplify right side
    244,644.80x = 51,253,868,463.36
  5. Step 5: Solve for x
    x = 51,253,868,463.36/244,644.80
  6. Step 6: Final answer
    x = 209,503.20

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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.