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Finding the Fourth Proportional to 114,559.94, 171,965.62 and 91,018.81

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Solution

The fourth proportional to 114,559.94, 171,965.62 and 91,018.81 is: 136,628.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,559.94 : 171,965.62 = 91,018.81 : x
  2. Step 2: Convert to fraction form
    114,559.94/171,965.62 = 91,018.81/x
  3. Step 3: Cross multiply
    114,559.94x = 171,965.62 × 91,018.81
  4. Step 4: Simplify right side
    114,559.94x = 15,652,106,093.31
  5. Step 5: Solve for x
    x = 15,652,106,093.31/114,559.94
  6. Step 6: Final answer
    x = 136,628.09

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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.