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Finding the Fourth Proportional to 108,951.88, 163,448.40 and 37,871.80

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Solution

The fourth proportional to 108,951.88, 163,448.40 and 37,871.80 is: 56,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,951.88 : 163,448.40 = 37,871.80 : x
  2. Step 2: Convert to fraction form
    108,951.88/163,448.40 = 37,871.80/x
  3. Step 3: Cross multiply
    108,951.88x = 163,448.40 × 37,871.80
  4. Step 4: Simplify right side
    108,951.88x = 6,190,085,115.12
  5. Step 5: Solve for x
    x = 6,190,085,115.12/108,951.88
  6. Step 6: Final answer
    x = 56,814.85

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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.