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Finding the Fourth Proportional to 228,862.28, 343,209.15 and 79,064.12

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Solution

The fourth proportional to 228,862.28, 343,209.15 and 79,064.12 is: 118,567.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,862.28 : 343,209.15 = 79,064.12 : x
  2. Step 2: Convert to fraction form
    228,862.28/343,209.15 = 79,064.12/x
  3. Step 3: Cross multiply
    228,862.28x = 343,209.15 × 79,064.12
  4. Step 4: Simplify right side
    228,862.28x = 27,135,529,420.70
  5. Step 5: Solve for x
    x = 27,135,529,420.70/228,862.28
  6. Step 6: Final answer
    x = 118,567.07

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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.