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Finding the Fourth Proportional to 117,740.56, 176,609.22 and 28,994.80

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Solution

The fourth proportional to 117,740.56, 176,609.22 and 28,994.80 is: 43,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,740.56 : 176,609.22 = 28,994.80 : x
  2. Step 2: Convert to fraction form
    117,740.56/176,609.22 = 28,994.80/x
  3. Step 3: Cross multiply
    117,740.56x = 176,609.22 × 28,994.80
  4. Step 4: Simplify right side
    117,740.56x = 5,120,749,012.06
  5. Step 5: Solve for x
    x = 5,120,749,012.06/117,740.56
  6. Step 6: Final answer
    x = 43,491.80

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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.