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Finding the Fourth Proportional to 117,950.08, 162,786 and 67,648

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Solution

The fourth proportional to 117,950.08, 162,786 and 67,648 is: 93,362.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,950.08 : 162,786 = 67,648 : x
  2. Step 2: Convert to fraction form
    117,950.08/162,786 = 67,648/x
  3. Step 3: Cross multiply
    117,950.08x = 162,786 × 67,648
  4. Step 4: Simplify right side
    117,950.08x = 11,012,147,328
  5. Step 5: Solve for x
    x = 11,012,147,328/117,950.08
  6. Step 6: Final answer
    x = 93,362.78

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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.