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Finding the Fourth Proportional to 203,622.56, 305,360.64 and 70,466.66

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Solution

The fourth proportional to 203,622.56, 305,360.64 and 70,466.66 is: 105,674.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,622.56 : 305,360.64 = 70,466.66 : x
  2. Step 2: Convert to fraction form
    203,622.56/305,360.64 = 70,466.66/x
  3. Step 3: Cross multiply
    203,622.56x = 305,360.64 × 70,466.66
  4. Step 4: Simplify right side
    203,622.56x = 21,517,744,396.26
  5. Step 5: Solve for x
    x = 21,517,744,396.26/203,622.56
  6. Step 6: Final answer
    x = 105,674.66

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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.