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Finding the Fourth Proportional to 360,505.88, 540,836.40 and 107,806.40

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Solution

The fourth proportional to 360,505.88, 540,836.40 and 107,806.40 is: 161,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,505.88 : 540,836.40 = 107,806.40 : x
  2. Step 2: Convert to fraction form
    360,505.88/540,836.40 = 107,806.40/x
  3. Step 3: Cross multiply
    360,505.88x = 540,836.40 × 107,806.40
  4. Step 4: Simplify right side
    360,505.88x = 58,305,625,272.96
  5. Step 5: Solve for x
    x = 58,305,625,272.96/360,505.88
  6. Step 6: Final answer
    x = 161,732.80

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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.