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Finding the Fourth Proportional to 173,145.20, 259,717.80 and 162,647.60

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Solution

The fourth proportional to 173,145.20, 259,717.80 and 162,647.60 is: 243,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,145.20 : 259,717.80 = 162,647.60 : x
  2. Step 2: Convert to fraction form
    173,145.20/259,717.80 = 162,647.60/x
  3. Step 3: Cross multiply
    173,145.20x = 259,717.80 × 162,647.60
  4. Step 4: Simplify right side
    173,145.20x = 42,242,476,847.28
  5. Step 5: Solve for x
    x = 42,242,476,847.28/173,145.20
  6. Step 6: Final answer
    x = 243,971.40

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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.