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Finding the Fourth Proportional to 371,867.34, 557,840.67 and 119,057.43

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Solution

The fourth proportional to 371,867.34, 557,840.67 and 119,057.43 is: 178,598.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,867.34 : 557,840.67 = 119,057.43 : x
  2. Step 2: Convert to fraction form
    371,867.34/557,840.67 = 119,057.43/x
  3. Step 3: Cross multiply
    371,867.34x = 557,840.67 × 119,057.43
  4. Step 4: Simplify right side
    371,867.34x = 66,415,076,519.68
  5. Step 5: Solve for x
    x = 66,415,076,519.68/371,867.34
  6. Step 6: Final answer
    x = 178,598.84

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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.