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Finding the Fourth Proportional to 248,203.85, 372,124.26 and 79,628.27

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Solution

The fourth proportional to 248,203.85, 372,124.26 and 79,628.27 is: 119,384.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,203.85 : 372,124.26 = 79,628.27 : x
  2. Step 2: Convert to fraction form
    248,203.85/372,124.26 = 79,628.27/x
  3. Step 3: Cross multiply
    248,203.85x = 372,124.26 × 79,628.27
  4. Step 4: Simplify right side
    248,203.85x = 29,631,609,188.21
  5. Step 5: Solve for x
    x = 29,631,609,188.21/248,203.85
  6. Step 6: Final answer
    x = 119,384.17

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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.