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Finding the Fourth Proportional to 220,342.12, 304,072.12 and 119,740.12

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Solution

The fourth proportional to 220,342.12, 304,072.12 and 119,740.12 is: 165,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,342.12 : 304,072.12 = 119,740.12 : x
  2. Step 2: Convert to fraction form
    220,342.12/304,072.12 = 119,740.12/x
  3. Step 3: Cross multiply
    220,342.12x = 304,072.12 × 119,740.12
  4. Step 4: Simplify right side
    220,342.12x = 36,409,632,137.45
  5. Step 5: Solve for x
    x = 36,409,632,137.45/220,342.12
  6. Step 6: Final answer
    x = 165,241.36

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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.