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Finding the Fourth Proportional to 168,668.35, 253,002.56 and 68,875.54

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Solution

The fourth proportional to 168,668.35, 253,002.56 and 68,875.54 is: 103,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,668.35 : 253,002.56 = 68,875.54 : x
  2. Step 2: Convert to fraction form
    168,668.35/253,002.56 = 68,875.54/x
  3. Step 3: Cross multiply
    168,668.35x = 253,002.56 × 68,875.54
  4. Step 4: Simplify right side
    168,668.35x = 17,425,686,964.50
  5. Step 5: Solve for x
    x = 17,425,686,964.50/168,668.35
  6. Step 6: Final answer
    x = 103,313.32

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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.