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Finding the Fourth Proportional to 216,608.86, 324,716.46 and 98,215.62

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Solution

The fourth proportional to 216,608.86, 324,716.46 and 98,215.62 is: 147,234.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,608.86 : 324,716.46 = 98,215.62 : x
  2. Step 2: Convert to fraction form
    216,608.86/324,716.46 = 98,215.62/x
  3. Step 3: Cross multiply
    216,608.86x = 324,716.46 × 98,215.62
  4. Step 4: Simplify right side
    216,608.86x = 31,892,228,443.11
  5. Step 5: Solve for x
    x = 31,892,228,443.11/216,608.86
  6. Step 6: Final answer
    x = 147,234.18

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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.