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Finding the Fourth Proportional to 235,376.85, 353,065.28 and 135,844.05

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Solution

The fourth proportional to 235,376.85, 353,065.28 and 135,844.05 is: 203,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,376.85 : 353,065.28 = 135,844.05 : x
  2. Step 2: Convert to fraction form
    235,376.85/353,065.28 = 135,844.05/x
  3. Step 3: Cross multiply
    235,376.85x = 353,065.28 × 135,844.05
  4. Step 4: Simplify right side
    235,376.85x = 47,961,816,870.36
  5. Step 5: Solve for x
    x = 47,961,816,870.36/235,376.85
  6. Step 6: Final answer
    x = 203,766.08

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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.