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Finding the Fourth Proportional to 94,005, 129,726.90 and 51,563.63

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Solution

The fourth proportional to 94,005, 129,726.90 and 51,563.63 is: 71,157.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,005 : 129,726.90 = 51,563.63 : x
  2. Step 2: Convert to fraction form
    94,005/129,726.90 = 51,563.63/x
  3. Step 3: Cross multiply
    94,005x = 129,726.90 × 51,563.63
  4. Step 4: Simplify right side
    94,005x = 6,689,190,196.96
  5. Step 5: Solve for x
    x = 6,689,190,196.96/94,005
  6. Step 6: Final answer
    x = 71,157.81

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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.