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Finding the Fourth Proportional to 341,390.70, 512,086.05 and 164,243.70

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Solution

The fourth proportional to 341,390.70, 512,086.05 and 164,243.70 is: 246,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,390.70 : 512,086.05 = 164,243.70 : x
  2. Step 2: Convert to fraction form
    341,390.70/512,086.05 = 164,243.70/x
  3. Step 3: Cross multiply
    341,390.70x = 512,086.05 × 164,243.70
  4. Step 4: Simplify right side
    341,390.70x = 84,106,907,570.39
  5. Step 5: Solve for x
    x = 84,106,907,570.39/341,390.70
  6. Step 6: Final answer
    x = 246,365.55

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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.