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Finding the Fourth Proportional to 80,848.86, 111,544.47 and 49,007.58

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Solution

The fourth proportional to 80,848.86, 111,544.47 and 49,007.58 is: 67,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,848.86 : 111,544.47 = 49,007.58 : x
  2. Step 2: Convert to fraction form
    80,848.86/111,544.47 = 49,007.58/x
  3. Step 3: Cross multiply
    80,848.86x = 111,544.47 × 49,007.58
  4. Step 4: Simplify right side
    80,848.86x = 5,466,524,537.08
  5. Step 5: Solve for x
    x = 5,466,524,537.08/80,848.86
  6. Step 6: Final answer
    x = 67,614.12

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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.