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Finding the Fourth Proportional to 103,797.33, 155,696.13 and 28,917.69

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Solution

The fourth proportional to 103,797.33, 155,696.13 and 28,917.69 is: 43,376.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,797.33 : 155,696.13 = 28,917.69 : x
  2. Step 2: Convert to fraction form
    103,797.33/155,696.13 = 28,917.69/x
  3. Step 3: Cross multiply
    103,797.33x = 155,696.13 × 28,917.69
  4. Step 4: Simplify right side
    103,797.33x = 4,502,372,421.54
  5. Step 5: Solve for x
    x = 4,502,372,421.54/103,797.33
  6. Step 6: Final answer
    x = 43,376.57

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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.