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Finding the Fourth Proportional to 115,809.20, 173,422.20 and 110,560.40

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Solution

The fourth proportional to 115,809.20, 173,422.20 and 110,560.40 is: 165,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,809.20 : 173,422.20 = 110,560.40 : x
  2. Step 2: Convert to fraction form
    115,809.20/173,422.20 = 110,560.40/x
  3. Step 3: Cross multiply
    115,809.20x = 173,422.20 × 110,560.40
  4. Step 4: Simplify right side
    115,809.20x = 19,173,627,800.88
  5. Step 5: Solve for x
    x = 19,173,627,800.88/115,809.20
  6. Step 6: Final answer
    x = 165,562.22

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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.