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Finding the Fourth Proportional to 236,880.45, 355,339.31 and 79,109.46

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Solution

The fourth proportional to 236,880.45, 355,339.31 and 79,109.46 is: 118,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,880.45 : 355,339.31 = 79,109.46 : x
  2. Step 2: Convert to fraction form
    236,880.45/355,339.31 = 79,109.46/x
  3. Step 3: Cross multiply
    236,880.45x = 355,339.31 × 79,109.46
  4. Step 4: Simplify right side
    236,880.45x = 28,110,700,535.33
  5. Step 5: Solve for x
    x = 28,110,700,535.33/236,880.45
  6. Step 6: Final answer
    x = 118,670.41

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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.