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Finding the Fourth Proportional to 114,647.87, 171,913.25 and 67,355.35

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Solution

The fourth proportional to 114,647.87, 171,913.25 and 67,355.35 is: 100,998.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,647.87 : 171,913.25 = 67,355.35 : x
  2. Step 2: Convert to fraction form
    114,647.87/171,913.25 = 67,355.35/x
  3. Step 3: Cross multiply
    114,647.87x = 171,913.25 × 67,355.35
  4. Step 4: Simplify right side
    114,647.87x = 11,579,277,123.39
  5. Step 5: Solve for x
    x = 11,579,277,123.39/114,647.87
  6. Step 6: Final answer
    x = 100,998.62

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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.