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Finding the Fourth Proportional to 60,991.88, 84,172.50 and 34,133.83

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Solution

The fourth proportional to 60,991.88, 84,172.50 and 34,133.83 is: 47,106.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,991.88 : 84,172.50 = 34,133.83 : x
  2. Step 2: Convert to fraction form
    60,991.88/84,172.50 = 34,133.83/x
  3. Step 3: Cross multiply
    60,991.88x = 84,172.50 × 34,133.83
  4. Step 4: Simplify right side
    60,991.88x = 2,873,129,214.14
  5. Step 5: Solve for x
    x = 2,873,129,214.14/60,991.88
  6. Step 6: Final answer
    x = 47,106.75

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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.