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Finding the Fourth Proportional to 236,816, 355,399.34 and 112,157.36

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Solution

The fourth proportional to 236,816, 355,399.34 and 112,157.36 is: 168,319.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,816 : 355,399.34 = 112,157.36 : x
  2. Step 2: Convert to fraction form
    236,816/355,399.34 = 112,157.36/x
  3. Step 3: Cross multiply
    236,816x = 355,399.34 × 112,157.36
  4. Step 4: Simplify right side
    236,816x = 39,860,651,720.14
  5. Step 5: Solve for x
    x = 39,860,651,720.14/236,816
  6. Step 6: Final answer
    x = 168,319.08

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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.