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Finding the Fourth Proportional to 115,855.20, 173,491.20 and 110,606.40

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Solution

The fourth proportional to 115,855.20, 173,491.20 and 110,606.40 is: 165,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,855.20 : 173,491.20 = 110,606.40 : x
  2. Step 2: Convert to fraction form
    115,855.20/173,491.20 = 110,606.40/x
  3. Step 3: Cross multiply
    115,855.20x = 173,491.20 × 110,606.40
  4. Step 4: Simplify right side
    115,855.20x = 19,189,237,063.68
  5. Step 5: Solve for x
    x = 19,189,237,063.68/115,855.20
  6. Step 6: Final answer
    x = 165,631.21

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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.