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Finding the Fourth Proportional to 188,293.60, 259,782.56 and 111,836.08

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Solution

The fourth proportional to 188,293.60, 259,782.56 and 111,836.08 is: 154,296.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,293.60 : 259,782.56 = 111,836.08 : x
  2. Step 2: Convert to fraction form
    188,293.60/259,782.56 = 111,836.08/x
  3. Step 3: Cross multiply
    188,293.60x = 259,782.56 × 111,836.08
  4. Step 4: Simplify right side
    188,293.60x = 29,053,063,162.76
  5. Step 5: Solve for x
    x = 29,053,063,162.76/188,293.60
  6. Step 6: Final answer
    x = 154,296.60

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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.