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Finding the Fourth Proportional to 164,238.60, 246,187.80 and 89,200.20

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Solution

The fourth proportional to 164,238.60, 246,187.80 and 89,200.20 is: 133,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,238.60 : 246,187.80 = 89,200.20 : x
  2. Step 2: Convert to fraction form
    164,238.60/246,187.80 = 89,200.20/x
  3. Step 3: Cross multiply
    164,238.60x = 246,187.80 × 89,200.20
  4. Step 4: Simplify right side
    164,238.60x = 21,960,000,997.56
  5. Step 5: Solve for x
    x = 21,960,000,997.56/164,238.60
  6. Step 6: Final answer
    x = 133,707.92

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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.