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Finding the Fourth Proportional to 124,559.76, 171,843.48 and 79,225.68

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Solution

The fourth proportional to 124,559.76, 171,843.48 and 79,225.68 is: 109,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,559.76 : 171,843.48 = 79,225.68 : x
  2. Step 2: Convert to fraction form
    124,559.76/171,843.48 = 79,225.68/x
  3. Step 3: Cross multiply
    124,559.76x = 171,843.48 × 79,225.68
  4. Step 4: Simplify right side
    124,559.76x = 13,614,416,556.57
  5. Step 5: Solve for x
    x = 13,614,416,556.57/124,559.76
  6. Step 6: Final answer
    x = 109,300.28

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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.