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Finding the Fourth Proportional to 228,862.80, 343,209.88 and 79,064.64

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Solution

The fourth proportional to 228,862.80, 343,209.88 and 79,064.64 is: 118,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,862.80 : 343,209.88 = 79,064.64 : x
  2. Step 2: Convert to fraction form
    228,862.80/343,209.88 = 79,064.64/x
  3. Step 3: Cross multiply
    228,862.80x = 343,209.88 × 79,064.64
  4. Step 4: Simplify right side
    228,862.80x = 27,135,765,606.64
  5. Step 5: Solve for x
    x = 27,135,765,606.64/228,862.80
  6. Step 6: Final answer
    x = 118,567.83

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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.