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Finding the Fourth Proportional to 248,890.72, 373,304.30 and 80,393.54

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Solution

The fourth proportional to 248,890.72, 373,304.30 and 80,393.54 is: 120,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,890.72 : 373,304.30 = 80,393.54 : x
  2. Step 2: Convert to fraction form
    248,890.72/373,304.30 = 80,393.54/x
  3. Step 3: Cross multiply
    248,890.72x = 373,304.30 × 80,393.54
  4. Step 4: Simplify right side
    248,890.72x = 30,011,254,174.22
  5. Step 5: Solve for x
    x = 30,011,254,174.22/248,890.72
  6. Step 6: Final answer
    x = 120,580.04

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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.