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Finding the Fourth Proportional to 133,141.68, 199,570.44 and 66,450.48

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Solution

The fourth proportional to 133,141.68, 199,570.44 and 66,450.48 is: 99,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,141.68 : 199,570.44 = 66,450.48 : x
  2. Step 2: Convert to fraction form
    133,141.68/199,570.44 = 66,450.48/x
  3. Step 3: Cross multiply
    133,141.68x = 199,570.44 × 66,450.48
  4. Step 4: Simplify right side
    133,141.68x = 13,261,551,531.81
  5. Step 5: Solve for x
    x = 13,261,551,531.81/133,141.68
  6. Step 6: Final answer
    x = 99,604.81

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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.