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Finding the Fourth Proportional to 441,253.20, 661,770.44 and 125,712.84

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Solution

The fourth proportional to 441,253.20, 661,770.44 and 125,712.84 is: 188,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,253.20 : 661,770.44 = 125,712.84 : x
  2. Step 2: Convert to fraction form
    441,253.20/661,770.44 = 125,712.84/x
  3. Step 3: Cross multiply
    441,253.20x = 661,770.44 × 125,712.84
  4. Step 4: Simplify right side
    441,253.20x = 83,193,041,440.45
  5. Step 5: Solve for x
    x = 83,193,041,440.45/441,253.20
  6. Step 6: Final answer
    x = 188,538.10

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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.