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Finding the Fourth Proportional to 172,759.94, 259,215.21 and 60,520.67

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Solution

The fourth proportional to 172,759.94, 259,215.21 and 60,520.67 is: 90,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,759.94 : 259,215.21 = 60,520.67 : x
  2. Step 2: Convert to fraction form
    172,759.94/259,215.21 = 60,520.67/x
  3. Step 3: Cross multiply
    172,759.94x = 259,215.21 × 60,520.67
  4. Step 4: Simplify right side
    172,759.94x = 15,687,878,831.43
  5. Step 5: Solve for x
    x = 15,687,878,831.43/172,759.94
  6. Step 6: Final answer
    x = 90,807.39

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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.