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Finding the Fourth Proportional to 268,464.40, 402,696.60 and 81,475.60

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Solution

The fourth proportional to 268,464.40, 402,696.60 and 81,475.60 is: 122,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,464.40 : 402,696.60 = 81,475.60 : x
  2. Step 2: Convert to fraction form
    268,464.40/402,696.60 = 81,475.60/x
  3. Step 3: Cross multiply
    268,464.40x = 402,696.60 × 81,475.60
  4. Step 4: Simplify right side
    268,464.40x = 32,809,947,102.96
  5. Step 5: Solve for x
    x = 32,809,947,102.96/268,464.40
  6. Step 6: Final answer
    x = 122,213.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.