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Finding the Fourth Proportional to 479,042.28, 718,365.72 and 163,524.60

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Solution

The fourth proportional to 479,042.28, 718,365.72 and 163,524.60 is: 245,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,042.28 : 718,365.72 = 163,524.60 : x
  2. Step 2: Convert to fraction form
    479,042.28/718,365.72 = 163,524.60/x
  3. Step 3: Cross multiply
    479,042.28x = 718,365.72 × 163,524.60
  4. Step 4: Simplify right side
    479,042.28x = 117,470,467,016.71
  5. Step 5: Solve for x
    x = 117,470,467,016.71/479,042.28
  6. Step 6: Final answer
    x = 245,219.41

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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.