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Finding the Fourth Proportional to 171,668.20, 257,526.60 and 53,327.20

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Solution

The fourth proportional to 171,668.20, 257,526.60 and 53,327.20 is: 79,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,668.20 : 257,526.60 = 53,327.20 : x
  2. Step 2: Convert to fraction form
    171,668.20/257,526.60 = 53,327.20/x
  3. Step 3: Cross multiply
    171,668.20x = 257,526.60 × 53,327.20
  4. Step 4: Simplify right side
    171,668.20x = 13,733,172,503.52
  5. Step 5: Solve for x
    x = 13,733,172,503.52/171,668.20
  6. Step 6: Final answer
    x = 79,998.35

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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.