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Finding the Fourth Proportional to 167,421.19, 231,101.90 and 110,850.79

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Solution

The fourth proportional to 167,421.19, 231,101.90 and 110,850.79 is: 153,014.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,421.19 : 231,101.90 = 110,850.79 : x
  2. Step 2: Convert to fraction form
    167,421.19/231,101.90 = 110,850.79/x
  3. Step 3: Cross multiply
    167,421.19x = 231,101.90 × 110,850.79
  4. Step 4: Simplify right side
    167,421.19x = 25,617,827,631.25
  5. Step 5: Solve for x
    x = 25,617,827,631.25/167,421.19
  6. Step 6: Final answer
    x = 153,014.25

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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.