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Finding the Fourth Proportional to 79,223.40, 118,902.30 and 32,509.80

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Solution

The fourth proportional to 79,223.40, 118,902.30 and 32,509.80 is: 48,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,223.40 : 118,902.30 = 32,509.80 : x
  2. Step 2: Convert to fraction form
    79,223.40/118,902.30 = 32,509.80/x
  3. Step 3: Cross multiply
    79,223.40x = 118,902.30 × 32,509.80
  4. Step 4: Simplify right side
    79,223.40x = 3,865,489,992.54
  5. Step 5: Solve for x
    x = 3,865,489,992.54/79,223.40
  6. Step 6: Final answer
    x = 48,792.28

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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.