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Finding the Fourth Proportional to 250,503.66, 345,716.96 and 137,348.28

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Solution

The fourth proportional to 250,503.66, 345,716.96 and 137,348.28 is: 189,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,503.66 : 345,716.96 = 137,348.28 : x
  2. Step 2: Convert to fraction form
    250,503.66/345,716.96 = 137,348.28/x
  3. Step 3: Cross multiply
    250,503.66x = 345,716.96 × 137,348.28
  4. Step 4: Simplify right side
    250,503.66x = 47,483,629,136.09
  5. Step 5: Solve for x
    x = 47,483,629,136.09/250,503.66
  6. Step 6: Final answer
    x = 189,552.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.