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Finding the Fourth Proportional to 432,236.60, 648,406.64 and 132,677.92

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Solution

The fourth proportional to 432,236.60, 648,406.64 and 132,677.92 is: 199,032.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,236.60 : 648,406.64 = 132,677.92 : x
  2. Step 2: Convert to fraction form
    432,236.60/648,406.64 = 132,677.92/x
  3. Step 3: Cross multiply
    432,236.60x = 648,406.64 × 132,677.92
  4. Step 4: Simplify right side
    432,236.60x = 86,029,244,309.39
  5. Step 5: Solve for x
    x = 86,029,244,309.39/432,236.60
  6. Step 6: Final answer
    x = 199,032.76

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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.