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Finding the Fourth Proportional to 284,124.20, 426,186.30 and 165,734.60

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Solution

The fourth proportional to 284,124.20, 426,186.30 and 165,734.60 is: 248,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,124.20 : 426,186.30 = 165,734.60 : x
  2. Step 2: Convert to fraction form
    284,124.20/426,186.30 = 165,734.60/x
  3. Step 3: Cross multiply
    284,124.20x = 426,186.30 × 165,734.60
  4. Step 4: Simplify right side
    284,124.20x = 70,633,815,955.98
  5. Step 5: Solve for x
    x = 70,633,815,955.98/284,124.20
  6. Step 6: Final answer
    x = 248,601.90

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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.