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Finding the Fourth Proportional to 111,869.04, 167,805.12 and 28,763.04

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Solution

The fourth proportional to 111,869.04, 167,805.12 and 28,763.04 is: 43,144.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,869.04 : 167,805.12 = 28,763.04 : x
  2. Step 2: Convert to fraction form
    111,869.04/167,805.12 = 28,763.04/x
  3. Step 3: Cross multiply
    111,869.04x = 167,805.12 × 28,763.04
  4. Step 4: Simplify right side
    111,869.04x = 4,826,585,378.76
  5. Step 5: Solve for x
    x = 4,826,585,378.76/111,869.04
  6. Step 6: Final answer
    x = 43,144.96

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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.