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Finding the Fourth Proportional to 248,809.86, 373,203.45 and 80,337.96

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Solution

The fourth proportional to 248,809.86, 373,203.45 and 80,337.96 is: 120,503.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,809.86 : 373,203.45 = 80,337.96 : x
  2. Step 2: Convert to fraction form
    248,809.86/373,203.45 = 80,337.96/x
  3. Step 3: Cross multiply
    248,809.86x = 373,203.45 × 80,337.96
  4. Step 4: Simplify right side
    248,809.86x = 29,982,403,837.96
  5. Step 5: Solve for x
    x = 29,982,403,837.96/248,809.86
  6. Step 6: Final answer
    x = 120,503.28

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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.