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Finding the Fourth Proportional to 259,350.40, 389,025.60 and 162,004.60

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Solution

The fourth proportional to 259,350.40, 389,025.60 and 162,004.60 is: 243,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,350.40 : 389,025.60 = 162,004.60 : x
  2. Step 2: Convert to fraction form
    259,350.40/389,025.60 = 162,004.60/x
  3. Step 3: Cross multiply
    259,350.40x = 389,025.60 × 162,004.60
  4. Step 4: Simplify right side
    259,350.40x = 63,023,936,717.76
  5. Step 5: Solve for x
    x = 63,023,936,717.76/259,350.40
  6. Step 6: Final answer
    x = 243,006.90

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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.