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Finding the Fourth Proportional to 79,166.51, 118,734.90 and 39,713.03

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Solution

The fourth proportional to 79,166.51, 118,734.90 and 39,713.03 is: 59,562.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,166.51 : 118,734.90 = 39,713.03 : x
  2. Step 2: Convert to fraction form
    79,166.51/118,734.90 = 39,713.03/x
  3. Step 3: Cross multiply
    79,166.51x = 118,734.90 × 39,713.03
  4. Step 4: Simplify right side
    79,166.51x = 4,715,322,645.75
  5. Step 5: Solve for x
    x = 4,715,322,645.75/79,166.51
  6. Step 6: Final answer
    x = 59,562.09

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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.