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Finding the Fourth Proportional to 80,693.77, 121,047.11 and 24,538.90

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Solution

The fourth proportional to 80,693.77, 121,047.11 and 24,538.90 is: 36,810.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,693.77 : 121,047.11 = 24,538.90 : x
  2. Step 2: Convert to fraction form
    80,693.77/121,047.11 = 24,538.90/x
  3. Step 3: Cross multiply
    80,693.77x = 121,047.11 × 24,538.90
  4. Step 4: Simplify right side
    80,693.77x = 2,970,362,821.25
  5. Step 5: Solve for x
    x = 2,970,362,821.25/80,693.77
  6. Step 6: Final answer
    x = 36,810.31

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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.