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Finding the Fourth Proportional to 298,899.44, 448,419.26 and 118,995.88

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Solution

The fourth proportional to 298,899.44, 448,419.26 and 118,995.88 is: 178,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,899.44 : 448,419.26 = 118,995.88 : x
  2. Step 2: Convert to fraction form
    298,899.44/448,419.26 = 118,995.88/x
  3. Step 3: Cross multiply
    298,899.44x = 448,419.26 × 118,995.88
  4. Step 4: Simplify right side
    298,899.44x = 53,360,041,615.57
  5. Step 5: Solve for x
    x = 53,360,041,615.57/298,899.44
  6. Step 6: Final answer
    x = 178,521.72

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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.