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Finding the Fourth Proportional to 382,245.40, 573,222.30 and 115,917.40

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Solution

The fourth proportional to 382,245.40, 573,222.30 and 115,917.40 is: 173,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,245.40 : 573,222.30 = 115,917.40 : x
  2. Step 2: Convert to fraction form
    382,245.40/573,222.30 = 115,917.40/x
  3. Step 3: Cross multiply
    382,245.40x = 573,222.30 × 115,917.40
  4. Step 4: Simplify right side
    382,245.40x = 66,446,438,638.02
  5. Step 5: Solve for x
    x = 66,446,438,638.02/382,245.40
  6. Step 6: Final answer
    x = 173,831.89

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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.