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Finding the Fourth Proportional to 135,955.25, 203,953.56 and 69,359.01

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Solution

The fourth proportional to 135,955.25, 203,953.56 and 69,359.01 is: 104,049.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,955.25 : 203,953.56 = 69,359.01 : x
  2. Step 2: Convert to fraction form
    135,955.25/203,953.56 = 69,359.01/x
  3. Step 3: Cross multiply
    135,955.25x = 203,953.56 × 69,359.01
  4. Step 4: Simplify right side
    135,955.25x = 14,146,017,007.58
  5. Step 5: Solve for x
    x = 14,146,017,007.58/135,955.25
  6. Step 6: Final answer
    x = 104,049.07

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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.