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Finding the Fourth Proportional to 362,370.72, 543,420 and 125,656.32

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Solution

The fourth proportional to 362,370.72, 543,420 and 125,656.32 is: 188,437.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,370.72 : 543,420 = 125,656.32 : x
  2. Step 2: Convert to fraction form
    362,370.72/543,420 = 125,656.32/x
  3. Step 3: Cross multiply
    362,370.72x = 543,420 × 125,656.32
  4. Step 4: Simplify right side
    362,370.72x = 68,284,157,414.40
  5. Step 5: Solve for x
    x = 68,284,157,414.40/362,370.72
  6. Step 6: Final answer
    x = 188,437.29

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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.