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Finding the Fourth Proportional to 167,812.40, 251,135.40 and 115,324.40

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Solution

The fourth proportional to 167,812.40, 251,135.40 and 115,324.40 is: 172,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,812.40 : 251,135.40 = 115,324.40 : x
  2. Step 2: Convert to fraction form
    167,812.40/251,135.40 = 115,324.40/x
  3. Step 3: Cross multiply
    167,812.40x = 251,135.40 × 115,324.40
  4. Step 4: Simplify right side
    167,812.40x = 28,962,039,323.76
  5. Step 5: Solve for x
    x = 28,962,039,323.76/167,812.40
  6. Step 6: Final answer
    x = 172,585.81

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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.