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Finding the Fourth Proportional to 77,948.48, 117,005.36 and 63,333.80

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Solution

The fourth proportional to 77,948.48, 117,005.36 and 63,333.80 is: 95,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,948.48 : 117,005.36 = 63,333.80 : x
  2. Step 2: Convert to fraction form
    77,948.48/117,005.36 = 63,333.80/x
  3. Step 3: Cross multiply
    77,948.48x = 117,005.36 × 63,333.80
  4. Step 4: Simplify right side
    77,948.48x = 7,410,394,069.17
  5. Step 5: Solve for x
    x = 7,410,394,069.17/77,948.48
  6. Step 6: Final answer
    x = 95,067.85

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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.