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Finding the Fourth Proportional to 174,745.20, 261,772.20 and 162,303.60

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Solution

The fourth proportional to 174,745.20, 261,772.20 and 162,303.60 is: 243,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,745.20 : 261,772.20 = 162,303.60 : x
  2. Step 2: Convert to fraction form
    174,745.20/261,772.20 = 162,303.60/x
  3. Step 3: Cross multiply
    174,745.20x = 261,772.20 × 162,303.60
  4. Step 4: Simplify right side
    174,745.20x = 42,486,570,439.92
  5. Step 5: Solve for x
    x = 42,486,570,439.92/174,745.20
  6. Step 6: Final answer
    x = 243,134.41

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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.