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Finding the Fourth Proportional to 362,386.36, 543,560.34 and 113,039.80

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Solution

The fourth proportional to 362,386.36, 543,560.34 and 113,039.80 is: 169,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,386.36 : 543,560.34 = 113,039.80 : x
  2. Step 2: Convert to fraction form
    362,386.36/543,560.34 = 113,039.80/x
  3. Step 3: Cross multiply
    362,386.36x = 543,560.34 × 113,039.80
  4. Step 4: Simplify right side
    362,386.36x = 61,443,952,121.53
  5. Step 5: Solve for x
    x = 61,443,952,121.53/362,386.36
  6. Step 6: Final answer
    x = 169,553.71

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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.