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Finding the Fourth Proportional to 262,173.44, 393,268.86 and 72,635.71

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Solution

The fourth proportional to 262,173.44, 393,268.86 and 72,635.71 is: 108,955.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,173.44 : 393,268.86 = 72,635.71 : x
  2. Step 2: Convert to fraction form
    262,173.44/393,268.86 = 72,635.71/x
  3. Step 3: Cross multiply
    262,173.44x = 393,268.86 × 72,635.71
  4. Step 4: Simplify right side
    262,173.44x = 28,565,362,866.99
  5. Step 5: Solve for x
    x = 28,565,362,866.99/262,173.44
  6. Step 6: Final answer
    x = 108,955.98

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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.