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Finding the Fourth Proportional to 173,145.90, 259,694.55 and 54,829.20

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Solution

The fourth proportional to 173,145.90, 259,694.55 and 54,829.20 is: 82,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,145.90 : 259,694.55 = 54,829.20 : x
  2. Step 2: Convert to fraction form
    173,145.90/259,694.55 = 54,829.20/x
  3. Step 3: Cross multiply
    173,145.90x = 259,694.55 × 54,829.20
  4. Step 4: Simplify right side
    173,145.90x = 14,238,844,420.86
  5. Step 5: Solve for x
    x = 14,238,844,420.86/173,145.90
  6. Step 6: Final answer
    x = 82,236.11

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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.