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Finding the Fourth Proportional to 72,046.61, 108,023.45 and 29,955.75

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Solution

The fourth proportional to 72,046.61, 108,023.45 and 29,955.75 is: 44,914.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,046.61 : 108,023.45 = 29,955.75 : x
  2. Step 2: Convert to fraction form
    72,046.61/108,023.45 = 29,955.75/x
  3. Step 3: Cross multiply
    72,046.61x = 108,023.45 × 29,955.75
  4. Step 4: Simplify right side
    72,046.61x = 3,235,923,295.54
  5. Step 5: Solve for x
    x = 3,235,923,295.54/72,046.61
  6. Step 6: Final answer
    x = 44,914.30

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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.