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Finding the Fourth Proportional to 255,593.08, 383,458.64 and 78,095.24

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Solution

The fourth proportional to 255,593.08, 383,458.64 and 78,095.24 is: 117,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,593.08 : 383,458.64 = 78,095.24 : x
  2. Step 2: Convert to fraction form
    255,593.08/383,458.64 = 78,095.24/x
  3. Step 3: Cross multiply
    255,593.08x = 383,458.64 × 78,095.24
  4. Step 4: Simplify right side
    255,593.08x = 29,946,294,520.87
  5. Step 5: Solve for x
    x = 29,946,294,520.87/255,593.08
  6. Step 6: Final answer
    x = 117,163.95

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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.