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Finding the Fourth Proportional to 79,484.52, 109,794.84 and 55,689.96

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Solution

The fourth proportional to 79,484.52, 109,794.84 and 55,689.96 is: 76,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,484.52 : 109,794.84 = 55,689.96 : x
  2. Step 2: Convert to fraction form
    79,484.52/109,794.84 = 55,689.96/x
  3. Step 3: Cross multiply
    79,484.52x = 109,794.84 × 55,689.96
  4. Step 4: Simplify right side
    79,484.52x = 6,114,470,247.81
  5. Step 5: Solve for x
    x = 6,114,470,247.81/79,484.52
  6. Step 6: Final answer
    x = 76,926.55

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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.