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Finding the Fourth Proportional to 172,751.48, 259,149.08 and 67,556.80

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Solution

The fourth proportional to 172,751.48, 259,149.08 and 67,556.80 is: 101,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,751.48 : 259,149.08 = 67,556.80 : x
  2. Step 2: Convert to fraction form
    172,751.48/259,149.08 = 67,556.80/x
  3. Step 3: Cross multiply
    172,751.48x = 259,149.08 × 67,556.80
  4. Step 4: Simplify right side
    172,751.48x = 17,507,282,567.74
  5. Step 5: Solve for x
    x = 17,507,282,567.74/172,751.48
  6. Step 6: Final answer
    x = 101,343.75

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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.