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Finding the Fourth Proportional to 135,964.66, 203,925.92 and 69,453.94

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Solution

The fourth proportional to 135,964.66, 203,925.92 and 69,453.94 is: 104,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,964.66 : 203,925.92 = 69,453.94 : x
  2. Step 2: Convert to fraction form
    135,964.66/203,925.92 = 69,453.94/x
  3. Step 3: Cross multiply
    135,964.66x = 203,925.92 × 69,453.94
  4. Step 4: Simplify right side
    135,964.66x = 14,163,458,612.12
  5. Step 5: Solve for x
    x = 14,163,458,612.12/135,964.66
  6. Step 6: Final answer
    x = 104,170.15

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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.