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Finding the Fourth Proportional to 73,084.61, 109,633.86 and 20,493.93

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Solution

The fourth proportional to 73,084.61, 109,633.86 and 20,493.93 is: 30,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,084.61 : 109,633.86 = 20,493.93 : x
  2. Step 2: Convert to fraction form
    73,084.61/109,633.86 = 20,493.93/x
  3. Step 3: Cross multiply
    73,084.61x = 109,633.86 × 20,493.93
  4. Step 4: Simplify right side
    73,084.61x = 2,246,828,652.47
  5. Step 5: Solve for x
    x = 2,246,828,652.47/73,084.61
  6. Step 6: Final answer
    x = 30,742.84

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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.