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Finding the Fourth Proportional to 172,488.96, 258,771.60 and 60,164.64

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Solution

The fourth proportional to 172,488.96, 258,771.60 and 60,164.64 is: 90,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,488.96 : 258,771.60 = 60,164.64 : x
  2. Step 2: Convert to fraction form
    172,488.96/258,771.60 = 60,164.64/x
  3. Step 3: Cross multiply
    172,488.96x = 258,771.60 × 60,164.64
  4. Step 4: Simplify right side
    172,488.96x = 15,568,900,156.22
  5. Step 5: Solve for x
    x = 15,568,900,156.22/172,488.96
  6. Step 6: Final answer
    x = 90,260.27

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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.