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Finding the Fourth Proportional to 172,814.96, 259,222.32 and 98,891.12

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Solution

The fourth proportional to 172,814.96, 259,222.32 and 98,891.12 is: 148,336.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,814.96 : 259,222.32 = 98,891.12 : x
  2. Step 2: Convert to fraction form
    172,814.96/259,222.32 = 98,891.12/x
  3. Step 3: Cross multiply
    172,814.96x = 259,222.32 × 98,891.12
  4. Step 4: Simplify right side
    172,814.96x = 25,634,785,553.80
  5. Step 5: Solve for x
    x = 25,634,785,553.80/172,814.96
  6. Step 6: Final answer
    x = 148,336.61

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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.