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Finding the Fourth Proportional to 248,181.68, 372,131.28 and 169,391.36

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Solution

The fourth proportional to 248,181.68, 372,131.28 and 169,391.36 is: 253,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,181.68 : 372,131.28 = 169,391.36 : x
  2. Step 2: Convert to fraction form
    248,181.68/372,131.28 = 169,391.36/x
  3. Step 3: Cross multiply
    248,181.68x = 372,131.28 × 169,391.36
  4. Step 4: Simplify right side
    248,181.68x = 63,035,823,617.74
  5. Step 5: Solve for x
    x = 63,035,823,617.74/248,181.68
  6. Step 6: Final answer
    x = 253,990.64

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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.