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Finding the Fourth Proportional to 216,661.62, 325,105.77 and 88,672.92

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Solution

The fourth proportional to 216,661.62, 325,105.77 and 88,672.92 is: 133,055.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,661.62 : 325,105.77 = 88,672.92 : x
  2. Step 2: Convert to fraction form
    216,661.62/325,105.77 = 88,672.92/x
  3. Step 3: Cross multiply
    216,661.62x = 325,105.77 × 88,672.92
  4. Step 4: Simplify right side
    216,661.62x = 28,828,076,309.22
  5. Step 5: Solve for x
    x = 28,828,076,309.22/216,661.62
  6. Step 6: Final answer
    x = 133,055.76

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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.