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Finding the Fourth Proportional to 167,903.29, 251,873.39 and 83,684.65

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Solution

The fourth proportional to 167,903.29, 251,873.39 and 83,684.65 is: 125,536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,903.29 : 251,873.39 = 83,684.65 : x
  2. Step 2: Convert to fraction form
    167,903.29/251,873.39 = 83,684.65/x
  3. Step 3: Cross multiply
    167,903.29x = 251,873.39 × 83,684.65
  4. Step 4: Simplify right side
    167,903.29x = 21,077,937,012.05
  5. Step 5: Solve for x
    x = 21,077,937,012.05/167,903.29
  6. Step 6: Final answer
    x = 125,536.18

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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.