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Finding the Fourth Proportional to 84,398.63, 126,615.02 and 37,651.50

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Solution

The fourth proportional to 84,398.63, 126,615.02 and 37,651.50 is: 56,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,398.63 : 126,615.02 = 37,651.50 : x
  2. Step 2: Convert to fraction form
    84,398.63/126,615.02 = 37,651.50/x
  3. Step 3: Cross multiply
    84,398.63x = 126,615.02 × 37,651.50
  4. Step 4: Simplify right side
    84,398.63x = 4,767,245,237.27
  5. Step 5: Solve for x
    x = 4,767,245,237.27/84,398.63
  6. Step 6: Final answer
    x = 56,484.87

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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.