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Finding the Fourth Proportional to 252,005.80, 378,008.70 and 252,005.80

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Solution

The fourth proportional to 252,005.80, 378,008.70 and 252,005.80 is: 378,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,005.80 : 378,008.70 = 252,005.80 : x
  2. Step 2: Convert to fraction form
    252,005.80/378,008.70 = 252,005.80/x
  3. Step 3: Cross multiply
    252,005.80x = 378,008.70 × 252,005.80
  4. Step 4: Simplify right side
    252,005.80x = 95,260,384,850.46
  5. Step 5: Solve for x
    x = 95,260,384,850.46/252,005.80
  6. Step 6: Final answer
    x = 378,008.70

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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.