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Finding the Fourth Proportional to 224,068.97, 309,230.45 and 136,891.37

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Solution

The fourth proportional to 224,068.97, 309,230.45 and 136,891.37 is: 188,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,068.97 : 309,230.45 = 136,891.37 : x
  2. Step 2: Convert to fraction form
    224,068.97/309,230.45 = 136,891.37/x
  3. Step 3: Cross multiply
    224,068.97x = 309,230.45 × 136,891.37
  4. Step 4: Simplify right side
    224,068.97x = 42,330,977,715.61
  5. Step 5: Solve for x
    x = 42,330,977,715.61/224,068.97
  6. Step 6: Final answer
    x = 188,919.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.