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Finding the Fourth Proportional to 117,161.88, 161,683.48 and 63,446.95

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Solution

The fourth proportional to 117,161.88, 161,683.48 and 63,446.95 is: 87,556.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,161.88 : 161,683.48 = 63,446.95 : x
  2. Step 2: Convert to fraction form
    117,161.88/161,683.48 = 63,446.95/x
  3. Step 3: Cross multiply
    117,161.88x = 161,683.48 × 63,446.95
  4. Step 4: Simplify right side
    117,161.88x = 10,258,323,952.80
  5. Step 5: Solve for x
    x = 10,258,323,952.80/117,161.88
  6. Step 6: Final answer
    x = 87,556.84

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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.