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Finding the Fourth Proportional to 173,141.80, 259,647.90 and 60,778.60

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Solution

The fourth proportional to 173,141.80, 259,647.90 and 60,778.60 is: 91,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,141.80 : 259,647.90 = 60,778.60 : x
  2. Step 2: Convert to fraction form
    173,141.80/259,647.90 = 60,778.60/x
  3. Step 3: Cross multiply
    173,141.80x = 259,647.90 × 60,778.60
  4. Step 4: Simplify right side
    173,141.80x = 15,781,035,854.94
  5. Step 5: Solve for x
    x = 15,781,035,854.94/173,141.80
  6. Step 6: Final answer
    x = 91,145.15

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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.