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Finding the Fourth Proportional to 250,351.99, 345,485.96 and 137,174.74

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Solution

The fourth proportional to 250,351.99, 345,485.96 and 137,174.74 is: 189,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,351.99 : 345,485.96 = 137,174.74 : x
  2. Step 2: Convert to fraction form
    250,351.99/345,485.96 = 137,174.74/x
  3. Step 3: Cross multiply
    250,351.99x = 345,485.96 × 137,174.74
  4. Step 4: Simplify right side
    250,351.99x = 47,391,946,736.65
  5. Step 5: Solve for x
    x = 47,391,946,736.65/250,351.99
  6. Step 6: Final answer
    x = 189,301.26

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1.5x scale

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.