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Finding the Fourth Proportional to 167,021.82, 230,499.54 and 99,079.02

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Solution

The fourth proportional to 167,021.82, 230,499.54 and 99,079.02 is: 136,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,021.82 : 230,499.54 = 99,079.02 : x
  2. Step 2: Convert to fraction form
    167,021.82/230,499.54 = 99,079.02/x
  3. Step 3: Cross multiply
    167,021.82x = 230,499.54 × 99,079.02
  4. Step 4: Simplify right side
    167,021.82x = 22,837,668,533.65
  5. Step 5: Solve for x
    x = 22,837,668,533.65/167,021.82
  6. Step 6: Final answer
    x = 136,734.64

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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.