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Finding the Fourth Proportional to 190,834.80, 286,381.80 and 106,594.80

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Solution

The fourth proportional to 190,834.80, 286,381.80 and 106,594.80 is: 159,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,834.80 : 286,381.80 = 106,594.80 : x
  2. Step 2: Convert to fraction form
    190,834.80/286,381.80 = 106,594.80/x
  3. Step 3: Cross multiply
    190,834.80x = 286,381.80 × 106,594.80
  4. Step 4: Simplify right side
    190,834.80x = 30,526,810,694.64
  5. Step 5: Solve for x
    x = 30,526,810,694.64/190,834.80
  6. Step 6: Final answer
    x = 159,964.59

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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.