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Finding the Fourth Proportional to 171,762.48, 257,519.16 and 115,462.94

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Solution

The fourth proportional to 171,762.48, 257,519.16 and 115,462.94 is: 173,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,762.48 : 257,519.16 = 115,462.94 : x
  2. Step 2: Convert to fraction form
    171,762.48/257,519.16 = 115,462.94/x
  3. Step 3: Cross multiply
    171,762.48x = 257,519.16 × 115,462.94
  4. Step 4: Simplify right side
    171,762.48x = 29,733,918,032.33
  5. Step 5: Solve for x
    x = 29,733,918,032.33/171,762.48
  6. Step 6: Final answer
    x = 173,110.67

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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.