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Finding the Fourth Proportional to 117,228.66, 175,840.75 and 28,481.41

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Solution

The fourth proportional to 117,228.66, 175,840.75 and 28,481.41 is: 42,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,228.66 : 175,840.75 = 28,481.41 : x
  2. Step 2: Convert to fraction form
    117,228.66/175,840.75 = 28,481.41/x
  3. Step 3: Cross multiply
    117,228.66x = 175,840.75 × 28,481.41
  4. Step 4: Simplify right side
    117,228.66x = 5,008,192,495.46
  5. Step 5: Solve for x
    x = 5,008,192,495.46/117,228.66
  6. Step 6: Final answer
    x = 42,721.57

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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.