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Finding the Fourth Proportional to 248,431.32, 372,647.10 and 79,951.63

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Solution

The fourth proportional to 248,431.32, 372,647.10 and 79,951.63 is: 119,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,431.32 : 372,647.10 = 79,951.63 : x
  2. Step 2: Convert to fraction form
    248,431.32/372,647.10 = 79,951.63/x
  3. Step 3: Cross multiply
    248,431.32x = 372,647.10 × 79,951.63
  4. Step 4: Simplify right side
    248,431.32x = 29,793,741,828.34
  5. Step 5: Solve for x
    x = 29,793,741,828.34/248,431.32
  6. Step 6: Final answer
    x = 119,927.48

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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.