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Finding the Fourth Proportional to 117,959.79, 177,015.81 and 43,073.67

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Solution

The fourth proportional to 117,959.79, 177,015.81 and 43,073.67 is: 64,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,959.79 : 177,015.81 = 43,073.67 : x
  2. Step 2: Convert to fraction form
    117,959.79/177,015.81 = 43,073.67/x
  3. Step 3: Cross multiply
    117,959.79x = 177,015.81 × 43,073.67
  4. Step 4: Simplify right side
    117,959.79x = 7,624,719,591.96
  5. Step 5: Solve for x
    x = 7,624,719,591.96/117,959.79
  6. Step 6: Final answer
    x = 64,638.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.