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Finding the Fourth Proportional to 117,626.54, 162,325.03 and 66,648.71

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Solution

The fourth proportional to 117,626.54, 162,325.03 and 66,648.71 is: 91,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,626.54 : 162,325.03 = 66,648.71 : x
  2. Step 2: Convert to fraction form
    117,626.54/162,325.03 = 66,648.71/x
  3. Step 3: Cross multiply
    117,626.54x = 162,325.03 × 66,648.71
  4. Step 4: Simplify right side
    117,626.54x = 10,818,753,704.92
  5. Step 5: Solve for x
    x = 10,818,753,704.92/117,626.54
  6. Step 6: Final answer
    x = 91,975.45

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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.