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Finding the Fourth Proportional to 117,683.38, 162,401.15 and 63,969.75

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Solution

The fourth proportional to 117,683.38, 162,401.15 and 63,969.75 is: 88,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,683.38 : 162,401.15 = 63,969.75 : x
  2. Step 2: Convert to fraction form
    117,683.38/162,401.15 = 63,969.75/x
  3. Step 3: Cross multiply
    117,683.38x = 162,401.15 × 63,969.75
  4. Step 4: Simplify right side
    117,683.38x = 10,388,761,125.14
  5. Step 5: Solve for x
    x = 10,388,761,125.14/117,683.38
  6. Step 6: Final answer
    x = 88,277.21

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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.