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Finding the Fourth Proportional to 228,984.59, 343,392.65 and 79,186.43

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Solution

The fourth proportional to 228,984.59, 343,392.65 and 79,186.43 is: 118,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,984.59 : 343,392.65 = 79,186.43 : x
  2. Step 2: Convert to fraction form
    228,984.59/343,392.65 = 79,186.43/x
  3. Step 3: Cross multiply
    228,984.59x = 343,392.65 × 79,186.43
  4. Step 4: Simplify right side
    228,984.59x = 27,192,038,801.24
  5. Step 5: Solve for x
    x = 27,192,038,801.24/228,984.59
  6. Step 6: Final answer
    x = 118,750.52

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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.