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Finding the Fourth Proportional to 228,668.34, 343,119.61 and 108,860.84

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Solution

The fourth proportional to 228,668.34, 343,119.61 and 108,860.84 is: 163,347.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,668.34 : 343,119.61 = 108,860.84 : x
  2. Step 2: Convert to fraction form
    228,668.34/343,119.61 = 108,860.84/x
  3. Step 3: Cross multiply
    228,668.34x = 343,119.61 × 108,860.84
  4. Step 4: Simplify right side
    228,668.34x = 37,352,288,965.07
  5. Step 5: Solve for x
    x = 37,352,288,965.07/228,668.34
  6. Step 6: Final answer
    x = 163,347.01

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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.