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Finding the Fourth Proportional to 77,910.53, 107,510.09 and 43,927.36

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Solution

The fourth proportional to 77,910.53, 107,510.09 and 43,927.36 is: 60,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,910.53 : 107,510.09 = 43,927.36 : x
  2. Step 2: Convert to fraction form
    77,910.53/107,510.09 = 43,927.36/x
  3. Step 3: Cross multiply
    77,910.53x = 107,510.09 × 43,927.36
  4. Step 4: Simplify right side
    77,910.53x = 4,722,634,543.39
  5. Step 5: Solve for x
    x = 4,722,634,543.39/77,910.53
  6. Step 6: Final answer
    x = 60,616.12

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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.