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Finding the Fourth Proportional to 167,854.56, 251,937.36 and 84,806.88

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Solution

The fourth proportional to 167,854.56, 251,937.36 and 84,806.88 is: 127,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,854.56 : 251,937.36 = 84,806.88 : x
  2. Step 2: Convert to fraction form
    167,854.56/251,937.36 = 84,806.88/x
  3. Step 3: Cross multiply
    167,854.56x = 251,937.36 × 84,806.88
  4. Step 4: Simplify right side
    167,854.56x = 21,366,021,457.04
  5. Step 5: Solve for x
    x = 21,366,021,457.04/167,854.56
  6. Step 6: Final answer
    x = 127,288.89

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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.