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Finding the Fourth Proportional to 73,672.76, 110,493.48 and 21,068.12

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Solution

The fourth proportional to 73,672.76, 110,493.48 and 21,068.12 is: 31,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,672.76 : 110,493.48 = 21,068.12 : x
  2. Step 2: Convert to fraction form
    73,672.76/110,493.48 = 21,068.12/x
  3. Step 3: Cross multiply
    73,672.76x = 110,493.48 × 21,068.12
  4. Step 4: Simplify right side
    73,672.76x = 2,327,889,895.86
  5. Step 5: Solve for x
    x = 2,327,889,895.86/73,672.76
  6. Step 6: Final answer
    x = 31,597.70

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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.