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Finding the Fourth Proportional to 188,339.69, 259,908.95 and 103,462.22

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Solution

The fourth proportional to 188,339.69, 259,908.95 and 103,462.22 is: 142,777.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,339.69 : 259,908.95 = 103,462.22 : x
  2. Step 2: Convert to fraction form
    188,339.69/259,908.95 = 103,462.22/x
  3. Step 3: Cross multiply
    188,339.69x = 259,908.95 × 103,462.22
  4. Step 4: Simplify right side
    188,339.69x = 26,890,756,964.87
  5. Step 5: Solve for x
    x = 26,890,756,964.87/188,339.69
  6. Step 6: Final answer
    x = 142,777.96

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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.