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Finding the Fourth Proportional to 108,980.11, 150,364.34 and 63,651.80

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Solution

The fourth proportional to 108,980.11, 150,364.34 and 63,651.80 is: 87,823.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,980.11 : 150,364.34 = 63,651.80 : x
  2. Step 2: Convert to fraction form
    108,980.11/150,364.34 = 63,651.80/x
  3. Step 3: Cross multiply
    108,980.11x = 150,364.34 × 63,651.80
  4. Step 4: Simplify right side
    108,980.11x = 9,570,960,680.75
  5. Step 5: Solve for x
    x = 9,570,960,680.75/108,980.11
  6. Step 6: Final answer
    x = 87,823.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.