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Finding the Fourth Proportional to 188,357.36, 259,922.32 and 103,472.56

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Solution

The fourth proportional to 188,357.36, 259,922.32 and 103,472.56 is: 142,786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,357.36 : 259,922.32 = 103,472.56 : x
  2. Step 2: Convert to fraction form
    188,357.36/259,922.32 = 103,472.56/x
  3. Step 3: Cross multiply
    188,357.36x = 259,922.32 × 103,472.56
  4. Step 4: Simplify right side
    188,357.36x = 26,894,827,851.54
  5. Step 5: Solve for x
    x = 26,894,827,851.54/188,357.36
  6. Step 6: Final answer
    x = 142,786.18

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1.5x scale

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.