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Finding the Fourth Proportional to 77,750.90, 116,604.78 and 33,367.78

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Solution

The fourth proportional to 77,750.90, 116,604.78 and 33,367.78 is: 50,042.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,750.90 : 116,604.78 = 33,367.78 : x
  2. Step 2: Convert to fraction form
    77,750.90/116,604.78 = 33,367.78/x
  3. Step 3: Cross multiply
    77,750.90x = 116,604.78 × 33,367.78
  4. Step 4: Simplify right side
    77,750.90x = 3,890,842,666.62
  5. Step 5: Solve for x
    x = 3,890,842,666.62/77,750.90
  6. Step 6: Final answer
    x = 50,042.41

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1.5x scale

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.