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Finding the Fourth Proportional to 103,788.75, 155,683.13 and 33,668.07

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Solution

The fourth proportional to 103,788.75, 155,683.13 and 33,668.07 is: 50,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,788.75 : 155,683.13 = 33,668.07 : x
  2. Step 2: Convert to fraction form
    103,788.75/155,683.13 = 33,668.07/x
  3. Step 3: Cross multiply
    103,788.75x = 155,683.13 × 33,668.07
  4. Step 4: Simplify right side
    103,788.75x = 5,241,550,518.66
  5. Step 5: Solve for x
    x = 5,241,550,518.66/103,788.75
  6. Step 6: Final answer
    x = 50,502.11

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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.