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Finding the Fourth Proportional to 167,271.78, 230,819.72 and 99,277.05

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Solution

The fourth proportional to 167,271.78, 230,819.72 and 99,277.05 is: 136,993.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,271.78 : 230,819.72 = 99,277.05 : x
  2. Step 2: Convert to fraction form
    167,271.78/230,819.72 = 99,277.05/x
  3. Step 3: Cross multiply
    167,271.78x = 230,819.72 × 99,277.05
  4. Step 4: Simplify right side
    167,271.78x = 22,915,100,387.04
  5. Step 5: Solve for x
    x = 22,915,100,387.04/167,271.78
  6. Step 6: Final answer
    x = 136,993.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.