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Finding the Fourth Proportional to 203,469.74, 304,894.77 and 103,480.10

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Solution

The fourth proportional to 203,469.74, 304,894.77 and 103,480.10 is: 155,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,469.74 : 304,894.77 = 103,480.10 : x
  2. Step 2: Convert to fraction form
    203,469.74/304,894.77 = 103,480.10/x
  3. Step 3: Cross multiply
    203,469.74x = 304,894.77 × 103,480.10
  4. Step 4: Simplify right side
    203,469.74x = 31,550,539,764.60
  5. Step 5: Solve for x
    x = 31,550,539,764.60/203,469.74
  6. Step 6: Final answer
    x = 155,062.57

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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.