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Finding the Fourth Proportional to 118,339.20, 177,163.20 and 114,883.20

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Solution

The fourth proportional to 118,339.20, 177,163.20 and 114,883.20 is: 171,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,339.20 : 177,163.20 = 114,883.20 : x
  2. Step 2: Convert to fraction form
    118,339.20/177,163.20 = 114,883.20/x
  3. Step 3: Cross multiply
    118,339.20x = 177,163.20 × 114,883.20
  4. Step 4: Simplify right side
    118,339.20x = 20,353,075,338.24
  5. Step 5: Solve for x
    x = 20,353,075,338.24/118,339.20
  6. Step 6: Final answer
    x = 171,989.29

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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.