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Finding the Fourth Proportional to 236,828, 355,416.96 and 112,169

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Solution

The fourth proportional to 236,828, 355,416.96 and 112,169 is: 168,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,828 : 355,416.96 = 112,169 : x
  2. Step 2: Convert to fraction form
    236,828/355,416.96 = 112,169/x
  3. Step 3: Cross multiply
    236,828x = 355,416.96 × 112,169
  4. Step 4: Simplify right side
    236,828x = 39,866,764,986.24
  5. Step 5: Solve for x
    x = 39,866,764,986.24/236,828
  6. Step 6: Final answer
    x = 168,336.37

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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.