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Finding the Fourth Proportional to 107,624.34, 161,520.75 and 74,576.34

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Solution

The fourth proportional to 107,624.34, 161,520.75 and 74,576.34 is: 111,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,624.34 : 161,520.75 = 74,576.34 : x
  2. Step 2: Convert to fraction form
    107,624.34/161,520.75 = 74,576.34/x
  3. Step 3: Cross multiply
    107,624.34x = 161,520.75 × 74,576.34
  4. Step 4: Simplify right side
    107,624.34x = 12,045,626,369.06
  5. Step 5: Solve for x
    x = 12,045,626,369.06/107,624.34
  6. Step 6: Final answer
    x = 111,922.88

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1.5x scale

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.