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Finding the Fourth Proportional to 55,292.70, 82,992.51 and 52,295.70

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Solution

The fourth proportional to 55,292.70, 82,992.51 and 52,295.70 is: 78,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,292.70 : 82,992.51 = 52,295.70 : x
  2. Step 2: Convert to fraction form
    55,292.70/82,992.51 = 52,295.70/x
  3. Step 3: Cross multiply
    55,292.70x = 82,992.51 × 52,295.70
  4. Step 4: Simplify right side
    55,292.70x = 4,340,151,405.21
  5. Step 5: Solve for x
    x = 4,340,151,405.21/55,292.70
  6. Step 6: Final answer
    x = 78,494.11

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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.