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Finding the Fourth Proportional to 196,762.67, 271,531.24 and 111,879.74

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Solution

The fourth proportional to 196,762.67, 271,531.24 and 111,879.74 is: 154,393.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,762.67 : 271,531.24 = 111,879.74 : x
  2. Step 2: Convert to fraction form
    196,762.67/271,531.24 = 111,879.74/x
  3. Step 3: Cross multiply
    196,762.67x = 271,531.24 × 111,879.74
  4. Step 4: Simplify right side
    196,762.67x = 30,378,842,895.72
  5. Step 5: Solve for x
    x = 30,378,842,895.72/196,762.67
  6. Step 6: Final answer
    x = 154,393.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.