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Finding the Fourth Proportional to 77,661.06, 107,211.06 and 50,844.66

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Solution

The fourth proportional to 77,661.06, 107,211.06 and 50,844.66 is: 70,191.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,661.06 : 107,211.06 = 50,844.66 : x
  2. Step 2: Convert to fraction form
    77,661.06/107,211.06 = 50,844.66/x
  3. Step 3: Cross multiply
    77,661.06x = 107,211.06 × 50,844.66
  4. Step 4: Simplify right side
    77,661.06x = 5,451,109,893.94
  5. Step 5: Solve for x
    x = 5,451,109,893.94/77,661.06
  6. Step 6: Final answer
    x = 70,191.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.