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Finding the Fourth Proportional to 248,858.22, 343,384.41 and 139,962.24

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Solution

The fourth proportional to 248,858.22, 343,384.41 and 139,962.24 is: 193,125.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,858.22 : 343,384.41 = 139,962.24 : x
  2. Step 2: Convert to fraction form
    248,858.22/343,384.41 = 139,962.24/x
  3. Step 3: Cross multiply
    248,858.22x = 343,384.41 × 139,962.24
  4. Step 4: Simplify right side
    248,858.22x = 48,060,851,204.68
  5. Step 5: Solve for x
    x = 48,060,851,204.68/248,858.22
  6. Step 6: Final answer
    x = 193,125.43

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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.