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Finding the Fourth Proportional to 259,876.36, 358,629.42 and 140,644.36

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Solution

The fourth proportional to 259,876.36, 358,629.42 and 140,644.36 is: 194,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,876.36 : 358,629.42 = 140,644.36 : x
  2. Step 2: Convert to fraction form
    259,876.36/358,629.42 = 140,644.36/x
  3. Step 3: Cross multiply
    259,876.36x = 358,629.42 × 140,644.36
  4. Step 4: Simplify right side
    259,876.36x = 50,439,205,253.07
  5. Step 5: Solve for x
    x = 50,439,205,253.07/259,876.36
  6. Step 6: Final answer
    x = 194,089.24

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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.