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Finding the Fourth Proportional to 188,240.42, 259,775.97 and 103,357.82

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Solution

The fourth proportional to 188,240.42, 259,775.97 and 103,357.82 is: 142,636.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,240.42 : 259,775.97 = 103,357.82 : x
  2. Step 2: Convert to fraction form
    188,240.42/259,775.97 = 103,357.82/x
  3. Step 3: Cross multiply
    188,240.42x = 259,775.97 × 103,357.82
  4. Step 4: Simplify right side
    188,240.42x = 26,849,877,947.59
  5. Step 5: Solve for x
    x = 26,849,877,947.59/188,240.42
  6. Step 6: Final answer
    x = 142,636.09

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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.