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Finding the Fourth Proportional to 192,770.88, 265,992.18 and 121,100.16

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Solution

The fourth proportional to 192,770.88, 265,992.18 and 121,100.16 is: 167,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,770.88 : 265,992.18 = 121,100.16 : x
  2. Step 2: Convert to fraction form
    192,770.88/265,992.18 = 121,100.16/x
  3. Step 3: Cross multiply
    192,770.88x = 265,992.18 × 121,100.16
  4. Step 4: Simplify right side
    192,770.88x = 32,211,695,556.75
  5. Step 5: Solve for x
    x = 32,211,695,556.75/192,770.88
  6. Step 6: Final answer
    x = 167,098.35

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1.5x scale

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.