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Finding the Fourth Proportional to 248,608.99, 343,071.33 and 151,974.69

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Solution

The fourth proportional to 248,608.99, 343,071.33 and 151,974.69 is: 209,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,608.99 : 343,071.33 = 151,974.69 : x
  2. Step 2: Convert to fraction form
    248,608.99/343,071.33 = 151,974.69/x
  3. Step 3: Cross multiply
    248,608.99x = 343,071.33 × 151,974.69
  4. Step 4: Simplify right side
    248,608.99x = 52,138,157,738.12
  5. Step 5: Solve for x
    x = 52,138,157,738.12/248,608.99
  6. Step 6: Final answer
    x = 209,719.52

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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.