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Finding the Fourth Proportional to 118,099.20, 177,353.60 and 83,283.20

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Solution

The fourth proportional to 118,099.20, 177,353.60 and 83,283.20 is: 125,069.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,099.20 : 177,353.60 = 83,283.20 : x
  2. Step 2: Convert to fraction form
    118,099.20/177,353.60 = 83,283.20/x
  3. Step 3: Cross multiply
    118,099.20x = 177,353.60 × 83,283.20
  4. Step 4: Simplify right side
    118,099.20x = 14,770,575,339.52
  5. Step 5: Solve for x
    x = 14,770,575,339.52/118,099.20
  6. Step 6: Final answer
    x = 125,069.22

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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.