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Finding the Fourth Proportional to 248,443.20, 372,664.80 and 136,468.80

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Solution

The fourth proportional to 248,443.20, 372,664.80 and 136,468.80 is: 204,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,443.20 : 372,664.80 = 136,468.80 : x
  2. Step 2: Convert to fraction form
    248,443.20/372,664.80 = 136,468.80/x
  3. Step 3: Cross multiply
    248,443.20x = 372,664.80 × 136,468.80
  4. Step 4: Simplify right side
    248,443.20x = 50,857,118,058.24
  5. Step 5: Solve for x
    x = 50,857,118,058.24/248,443.20
  6. Step 6: Final answer
    x = 204,703.20

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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.