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Finding the Fourth Proportional to 216,761.72, 325,091.52 and 122,033.03

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Solution

The fourth proportional to 216,761.72, 325,091.52 and 122,033.03 is: 183,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,761.72 : 325,091.52 = 122,033.03 : x
  2. Step 2: Convert to fraction form
    216,761.72/325,091.52 = 122,033.03/x
  3. Step 3: Cross multiply
    216,761.72x = 325,091.52 × 122,033.03
  4. Step 4: Simplify right side
    216,761.72x = 39,671,901,587.45
  5. Step 5: Solve for x
    x = 39,671,901,587.45/216,761.72
  6. Step 6: Final answer
    x = 183,020.80

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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.