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Finding the Fourth Proportional to 79,973.94, 110,378.34 and 47,710.56

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Solution

The fourth proportional to 79,973.94, 110,378.34 and 47,710.56 is: 65,849.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,973.94 : 110,378.34 = 47,710.56 : x
  2. Step 2: Convert to fraction form
    79,973.94/110,378.34 = 47,710.56/x
  3. Step 3: Cross multiply
    79,973.94x = 110,378.34 × 47,710.56
  4. Step 4: Simplify right side
    79,973.94x = 5,266,212,413.27
  5. Step 5: Solve for x
    x = 5,266,212,413.27/79,973.94
  6. Step 6: Final answer
    x = 65,849.11

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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.