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Finding the Fourth Proportional to 537,688.20, 806,532.30 and 163,662.60

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Solution

The fourth proportional to 537,688.20, 806,532.30 and 163,662.60 is: 245,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,688.20 : 806,532.30 = 163,662.60 : x
  2. Step 2: Convert to fraction form
    537,688.20/806,532.30 = 163,662.60/x
  3. Step 3: Cross multiply
    537,688.20x = 806,532.30 × 163,662.60
  4. Step 4: Simplify right side
    537,688.20x = 131,999,173,201.98
  5. Step 5: Solve for x
    x = 131,999,173,201.98/537,688.20
  6. Step 6: Final answer
    x = 245,493.90

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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.