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Finding the Fourth Proportional to 79,281.92, 118,942.70 and 55,953.92

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Solution

The fourth proportional to 79,281.92, 118,942.70 and 55,953.92 is: 83,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,281.92 : 118,942.70 = 55,953.92 : x
  2. Step 2: Convert to fraction form
    79,281.92/118,942.70 = 55,953.92/x
  3. Step 3: Cross multiply
    79,281.92x = 118,942.70 × 55,953.92
  4. Step 4: Simplify right side
    79,281.92x = 6,655,310,320.38
  5. Step 5: Solve for x
    x = 6,655,310,320.38/79,281.92
  6. Step 6: Final answer
    x = 83,944.87

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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.