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Finding the Fourth Proportional to 90,262.44, 135,471.42 and 43,554.60

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Solution

The fourth proportional to 90,262.44, 135,471.42 and 43,554.60 is: 65,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,262.44 : 135,471.42 = 43,554.60 : x
  2. Step 2: Convert to fraction form
    90,262.44/135,471.42 = 43,554.60/x
  3. Step 3: Cross multiply
    90,262.44x = 135,471.42 × 43,554.60
  4. Step 4: Simplify right side
    90,262.44x = 5,900,403,509.53
  5. Step 5: Solve for x
    x = 5,900,403,509.53/90,262.44
  6. Step 6: Final answer
    x = 65,369.42

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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.