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Finding the Fourth Proportional to 173,209.60, 259,571.40 and 137,731.60

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Solution

The fourth proportional to 173,209.60, 259,571.40 and 137,731.60 is: 206,404.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,209.60 : 259,571.40 = 137,731.60 : x
  2. Step 2: Convert to fraction form
    173,209.60/259,571.40 = 137,731.60/x
  3. Step 3: Cross multiply
    173,209.60x = 259,571.40 × 137,731.60
  4. Step 4: Simplify right side
    173,209.60x = 35,751,184,236.24
  5. Step 5: Solve for x
    x = 35,751,184,236.24/173,209.60
  6. Step 6: Final answer
    x = 206,404.17

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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.