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Finding the Fourth Proportional to 222,458.63, 306,992.90 and 126,963.27

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Solution

The fourth proportional to 222,458.63, 306,992.90 and 126,963.27 is: 175,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,458.63 : 306,992.90 = 126,963.27 : x
  2. Step 2: Convert to fraction form
    222,458.63/306,992.90 = 126,963.27/x
  3. Step 3: Cross multiply
    222,458.63x = 306,992.90 × 126,963.27
  4. Step 4: Simplify right side
    222,458.63x = 38,976,822,768.19
  5. Step 5: Solve for x
    x = 38,976,822,768.19/222,458.63
  6. Step 6: Final answer
    x = 175,209.31

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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.