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Finding the Fourth Proportional to 262,752.80, 394,420.80 and 163,025.60

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Solution

The fourth proportional to 262,752.80, 394,420.80 and 163,025.60 is: 244,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,752.80 : 394,420.80 = 163,025.60 : x
  2. Step 2: Convert to fraction form
    262,752.80/394,420.80 = 163,025.60/x
  3. Step 3: Cross multiply
    262,752.80x = 394,420.80 × 163,025.60
  4. Step 4: Simplify right side
    262,752.80x = 64,300,687,572.48
  5. Step 5: Solve for x
    x = 64,300,687,572.48/262,752.80
  6. Step 6: Final answer
    x = 244,719.32

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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.