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Finding the Fourth Proportional to 84,493.80, 126,747.30 and 37,751.40

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Solution

The fourth proportional to 84,493.80, 126,747.30 and 37,751.40 is: 56,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,493.80 : 126,747.30 = 37,751.40 : x
  2. Step 2: Convert to fraction form
    84,493.80/126,747.30 = 37,751.40/x
  3. Step 3: Cross multiply
    84,493.80x = 126,747.30 × 37,751.40
  4. Step 4: Simplify right side
    84,493.80x = 4,784,888,021.22
  5. Step 5: Solve for x
    x = 4,784,888,021.22/84,493.80
  6. Step 6: Final answer
    x = 56,630.05

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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.