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Finding the Fourth Proportional to 362,645.28, 543,967.82 and 113,327.28

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Solution

The fourth proportional to 362,645.28, 543,967.82 and 113,327.28 is: 169,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,645.28 : 543,967.82 = 113,327.28 : x
  2. Step 2: Convert to fraction form
    362,645.28/543,967.82 = 113,327.28/x
  3. Step 3: Cross multiply
    362,645.28x = 543,967.82 × 113,327.28
  4. Step 4: Simplify right side
    362,645.28x = 61,646,393,448.13
  5. Step 5: Solve for x
    x = 61,646,393,448.13/362,645.28
  6. Step 6: Final answer
    x = 169,990.89

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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.