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Finding the Fourth Proportional to 173,112.80, 259,620.60 and 54,820.40

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Solution

The fourth proportional to 173,112.80, 259,620.60 and 54,820.40 is: 82,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,112.80 : 259,620.60 = 54,820.40 : x
  2. Step 2: Convert to fraction form
    173,112.80/259,620.60 = 54,820.40/x
  3. Step 3: Cross multiply
    173,112.80x = 259,620.60 × 54,820.40
  4. Step 4: Simplify right side
    173,112.80x = 14,232,505,140.24
  5. Step 5: Solve for x
    x = 14,232,505,140.24/173,112.80
  6. Step 6: Final answer
    x = 82,215.21

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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.