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Finding the Fourth Proportional to 372,111.60, 558,167.40 and 267,135.60

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Solution

The fourth proportional to 372,111.60, 558,167.40 and 267,135.60 is: 400,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,111.60 : 558,167.40 = 267,135.60 : x
  2. Step 2: Convert to fraction form
    372,111.60/558,167.40 = 267,135.60/x
  3. Step 3: Cross multiply
    372,111.60x = 558,167.40 × 267,135.60
  4. Step 4: Simplify right side
    372,111.60x = 149,106,383,299.44
  5. Step 5: Solve for x
    x = 149,106,383,299.44/372,111.60
  6. Step 6: Final answer
    x = 400,703.40

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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.