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Finding the Fourth Proportional to 171,381.63, 236,505.01 and 98,757.84

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Solution

The fourth proportional to 171,381.63, 236,505.01 and 98,757.84 is: 136,284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,381.63 : 236,505.01 = 98,757.84 : x
  2. Step 2: Convert to fraction form
    171,381.63/236,505.01 = 98,757.84/x
  3. Step 3: Cross multiply
    171,381.63x = 236,505.01 × 98,757.84
  4. Step 4: Simplify right side
    171,381.63x = 23,356,724,947.12
  5. Step 5: Solve for x
    x = 23,356,724,947.12/171,381.63
  6. Step 6: Final answer
    x = 136,284.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.