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Finding the Fourth Proportional to 252,035.69, 378,056.60 and 74,546.28

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Solution

The fourth proportional to 252,035.69, 378,056.60 and 74,546.28 is: 111,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,035.69 : 378,056.60 = 74,546.28 : x
  2. Step 2: Convert to fraction form
    252,035.69/378,056.60 = 74,546.28/x
  3. Step 3: Cross multiply
    252,035.69x = 378,056.60 × 74,546.28
  4. Step 4: Simplify right side
    252,035.69x = 28,182,712,786.72
  5. Step 5: Solve for x
    x = 28,182,712,786.72/252,035.69
  6. Step 6: Final answer
    x = 111,820.33

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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.