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Finding the Fourth Proportional to 236,950, 355,481.16 and 70,742.32

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Solution

The fourth proportional to 236,950, 355,481.16 and 70,742.32 is: 106,130.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,950 : 355,481.16 = 70,742.32 : x
  2. Step 2: Convert to fraction form
    236,950/355,481.16 = 70,742.32/x
  3. Step 3: Cross multiply
    236,950x = 355,481.16 × 70,742.32
  4. Step 4: Simplify right side
    236,950x = 25,147,561,974.69
  5. Step 5: Solve for x
    x = 25,147,561,974.69/236,950
  6. Step 6: Final answer
    x = 106,130.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.