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Finding the Fourth Proportional to 173,256.40, 259,901.61 and 72,033.54

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Solution

The fourth proportional to 173,256.40, 259,901.61 and 72,033.54 is: 108,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,256.40 : 259,901.61 = 72,033.54 : x
  2. Step 2: Convert to fraction form
    173,256.40/259,901.61 = 72,033.54/x
  3. Step 3: Cross multiply
    173,256.40x = 259,901.61 × 72,033.54
  4. Step 4: Simplify right side
    173,256.40x = 18,721,633,020.00
  5. Step 5: Solve for x
    x = 18,721,633,020.00/173,256.40
  6. Step 6: Final answer
    x = 108,057.38

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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.