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Finding the Fourth Proportional to 378,247.40, 567,166.30 and 156,653.80

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Solution

The fourth proportional to 378,247.40, 567,166.30 and 156,653.80 is: 234,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,247.40 : 567,166.30 = 156,653.80 : x
  2. Step 2: Convert to fraction form
    378,247.40/567,166.30 = 156,653.80/x
  3. Step 3: Cross multiply
    378,247.40x = 567,166.30 × 156,653.80
  4. Step 4: Simplify right side
    378,247.40x = 88,848,756,126.94
  5. Step 5: Solve for x
    x = 88,848,756,126.94/378,247.40
  6. Step 6: Final answer
    x = 234,895.88

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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.