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Finding the Fourth Proportional to 188,222.96, 259,739.52 and 103,341.44

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Solution

The fourth proportional to 188,222.96, 259,739.52 and 103,341.44 is: 142,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,222.96 : 259,739.52 = 103,341.44 : x
  2. Step 2: Convert to fraction form
    188,222.96/259,739.52 = 103,341.44/x
  3. Step 3: Cross multiply
    188,222.96x = 259,739.52 × 103,341.44
  4. Step 4: Simplify right side
    188,222.96x = 26,841,856,021.71
  5. Step 5: Solve for x
    x = 26,841,856,021.71/188,222.96
  6. Step 6: Final answer
    x = 142,606.70

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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.