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Finding the Fourth Proportional to 235,835.61, 353,544.39 and 169,107.81

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Solution

The fourth proportional to 235,835.61, 353,544.39 and 169,107.81 is: 253,511.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,835.61 : 353,544.39 = 169,107.81 : x
  2. Step 2: Convert to fraction form
    235,835.61/353,544.39 = 169,107.81/x
  3. Step 3: Cross multiply
    235,835.61x = 353,544.39 × 169,107.81
  4. Step 4: Simplify right side
    235,835.61x = 59,787,117,530.69
  5. Step 5: Solve for x
    x = 59,787,117,530.69/235,835.61
  6. Step 6: Final answer
    x = 253,511.83

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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.