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Finding the Fourth Proportional to 114,759.84, 170,986.33 and 108,313.90

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Solution

The fourth proportional to 114,759.84, 170,986.33 and 108,313.90 is: 161,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,759.84 : 170,986.33 = 108,313.90 : x
  2. Step 2: Convert to fraction form
    114,759.84/170,986.33 = 108,313.90/x
  3. Step 3: Cross multiply
    114,759.84x = 170,986.33 × 108,313.90
  4. Step 4: Simplify right side
    114,759.84x = 18,520,196,248.99
  5. Step 5: Solve for x
    x = 18,520,196,248.99/114,759.84
  6. Step 6: Final answer
    x = 161,382.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.