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Finding the Fourth Proportional to 204,282.60, 306,212.56 and 77,888.84

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Solution

The fourth proportional to 204,282.60, 306,212.56 and 77,888.84 is: 116,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,282.60 : 306,212.56 = 77,888.84 : x
  2. Step 2: Convert to fraction form
    204,282.60/306,212.56 = 77,888.84/x
  3. Step 3: Cross multiply
    204,282.60x = 306,212.56 × 77,888.84
  4. Step 4: Simplify right side
    204,282.60x = 23,850,541,091.83
  5. Step 5: Solve for x
    x = 23,850,541,091.83/204,282.60
  6. Step 6: Final answer
    x = 116,752.68

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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.