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Finding the Fourth Proportional to 117,462.72, 162,095.76 and 63,745.44

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Solution

The fourth proportional to 117,462.72, 162,095.76 and 63,745.44 is: 87,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,462.72 : 162,095.76 = 63,745.44 : x
  2. Step 2: Convert to fraction form
    117,462.72/162,095.76 = 63,745.44/x
  3. Step 3: Cross multiply
    117,462.72x = 162,095.76 × 63,745.44
  4. Step 4: Simplify right side
    117,462.72x = 10,332,865,543.33
  5. Step 5: Solve for x
    x = 10,332,865,543.33/117,462.72
  6. Step 6: Final answer
    x = 87,967.19

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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.