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Finding the Fourth Proportional to 72,328.17, 108,562.32 and 34,914.54

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Solution

The fourth proportional to 72,328.17, 108,562.32 and 34,914.54 is: 52,405.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,328.17 : 108,562.32 = 34,914.54 : x
  2. Step 2: Convert to fraction form
    72,328.17/108,562.32 = 34,914.54/x
  3. Step 3: Cross multiply
    72,328.17x = 108,562.32 × 34,914.54
  4. Step 4: Simplify right side
    72,328.17x = 3,790,403,464.13
  5. Step 5: Solve for x
    x = 3,790,403,464.13/72,328.17
  6. Step 6: Final answer
    x = 52,405.63

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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.