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Finding the Fourth Proportional to 173,644.60, 261,023.70 and 161,318.20

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Solution

The fourth proportional to 173,644.60, 261,023.70 and 161,318.20 is: 242,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,644.60 : 261,023.70 = 161,318.20 : x
  2. Step 2: Convert to fraction form
    173,644.60/261,023.70 = 161,318.20/x
  3. Step 3: Cross multiply
    173,644.60x = 261,023.70 × 161,318.20
  4. Step 4: Simplify right side
    173,644.60x = 42,107,873,441.34
  5. Step 5: Solve for x
    x = 42,107,873,441.34/173,644.60
  6. Step 6: Final answer
    x = 242,494.57

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1.5x scale

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.