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Finding the Fourth Proportional to 339,709.84, 468,796.20 and 188,803.60

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Solution

The fourth proportional to 339,709.84, 468,796.20 and 188,803.60 is: 260,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,709.84 : 468,796.20 = 188,803.60 : x
  2. Step 2: Convert to fraction form
    339,709.84/468,796.20 = 188,803.60/x
  3. Step 3: Cross multiply
    339,709.84x = 468,796.20 × 188,803.60
  4. Step 4: Simplify right side
    339,709.84x = 88,510,410,226.32
  5. Step 5: Solve for x
    x = 88,510,410,226.32/339,709.84
  6. Step 6: Final answer
    x = 260,547.09

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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.