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Finding the Fourth Proportional to 250,506.76, 345,696.42 and 137,329.48

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Solution

The fourth proportional to 250,506.76, 345,696.42 and 137,329.48 is: 189,513.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,506.76 : 345,696.42 = 137,329.48 : x
  2. Step 2: Convert to fraction form
    250,506.76/345,696.42 = 137,329.48/x
  3. Step 3: Cross multiply
    250,506.76x = 345,696.42 × 137,329.48
  4. Step 4: Simplify right side
    250,506.76x = 47,474,309,596.46
  5. Step 5: Solve for x
    x = 47,474,309,596.46/250,506.76
  6. Step 6: Final answer
    x = 189,513.09

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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.