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Finding the Fourth Proportional to 248,563.30, 343,144.65 and 168,412.90

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Solution

The fourth proportional to 248,563.30, 343,144.65 and 168,412.90 is: 232,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,563.30 : 343,144.65 = 168,412.90 : x
  2. Step 2: Convert to fraction form
    248,563.30/343,144.65 = 168,412.90/x
  3. Step 3: Cross multiply
    248,563.30x = 343,144.65 × 168,412.90
  4. Step 4: Simplify right side
    248,563.30x = 57,789,985,625.99
  5. Step 5: Solve for x
    x = 57,789,985,625.99/248,563.30
  6. Step 6: Final answer
    x = 232,496.05

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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.