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Finding the Fourth Proportional to 278,059.74, 417,025.62 and 165,771.60

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Solution

The fourth proportional to 278,059.74, 417,025.62 and 165,771.60 is: 248,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,059.74 : 417,025.62 = 165,771.60 : x
  2. Step 2: Convert to fraction form
    278,059.74/417,025.62 = 165,771.60/x
  3. Step 3: Cross multiply
    278,059.74x = 417,025.62 × 165,771.60
  4. Step 4: Simplify right side
    278,059.74x = 69,131,004,268.39
  5. Step 5: Solve for x
    x = 69,131,004,268.39/278,059.74
  6. Step 6: Final answer
    x = 248,619.25

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1.5x scale

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.