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Finding the Fourth Proportional to 117,049.86, 161,376.30 and 74,592.90

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Solution

The fourth proportional to 117,049.86, 161,376.30 and 74,592.90 is: 102,841.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,049.86 : 161,376.30 = 74,592.90 : x
  2. Step 2: Convert to fraction form
    117,049.86/161,376.30 = 74,592.90/x
  3. Step 3: Cross multiply
    117,049.86x = 161,376.30 × 74,592.90
  4. Step 4: Simplify right side
    117,049.86x = 12,037,526,208.27
  5. Step 5: Solve for x
    x = 12,037,526,208.27/117,049.86
  6. Step 6: Final answer
    x = 102,841.01

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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.