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Finding the Fourth Proportional to 136,574.51, 204,861.76 and 106,639.34

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Solution

The fourth proportional to 136,574.51, 204,861.76 and 106,639.34 is: 159,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,574.51 : 204,861.76 = 106,639.34 : x
  2. Step 2: Convert to fraction form
    136,574.51/204,861.76 = 106,639.34/x
  3. Step 3: Cross multiply
    136,574.51x = 204,861.76 × 106,639.34
  4. Step 4: Simplify right side
    136,574.51x = 21,846,321,586.73
  5. Step 5: Solve for x
    x = 21,846,321,586.73/136,574.51
  6. Step 6: Final answer
    x = 159,959.00

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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.