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Finding the Fourth Proportional to 172,811.76, 259,318.44 and 93,934.32

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Solution

The fourth proportional to 172,811.76, 259,318.44 and 93,934.32 is: 140,956.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,811.76 : 259,318.44 = 93,934.32 : x
  2. Step 2: Convert to fraction form
    172,811.76/259,318.44 = 93,934.32/x
  3. Step 3: Cross multiply
    172,811.76x = 259,318.44 × 93,934.32
  4. Step 4: Simplify right side
    172,811.76x = 24,358,901,324.86
  5. Step 5: Solve for x
    x = 24,358,901,324.86/172,811.76
  6. Step 6: Final answer
    x = 140,956.27

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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.