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Finding the Fourth Proportional to 114,676.56, 158,287.32 and 76,491.72

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Solution

The fourth proportional to 114,676.56, 158,287.32 and 76,491.72 is: 105,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,676.56 : 158,287.32 = 76,491.72 : x
  2. Step 2: Convert to fraction form
    114,676.56/158,287.32 = 76,491.72/x
  3. Step 3: Cross multiply
    114,676.56x = 158,287.32 × 76,491.72
  4. Step 4: Simplify right side
    114,676.56x = 12,107,669,360.99
  5. Step 5: Solve for x
    x = 12,107,669,360.99/114,676.56
  6. Step 6: Final answer
    x = 105,581.03

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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.