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Finding the Fourth Proportional to 252,989.58, 378,604.08 and 156,881.88

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Solution

The fourth proportional to 252,989.58, 378,604.08 and 156,881.88 is: 234,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,989.58 : 378,604.08 = 156,881.88 : x
  2. Step 2: Convert to fraction form
    252,989.58/378,604.08 = 156,881.88/x
  3. Step 3: Cross multiply
    252,989.58x = 378,604.08 × 156,881.88
  4. Step 4: Simplify right side
    252,989.58x = 59,396,119,846.07
  5. Step 5: Solve for x
    x = 59,396,119,846.07/252,989.58
  6. Step 6: Final answer
    x = 234,776.94

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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.