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Finding the Fourth Proportional to 265,893.75, 366,934.50 and 145,037.61

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Solution

The fourth proportional to 265,893.75, 366,934.50 and 145,037.61 is: 200,152.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,893.75 : 366,934.50 = 145,037.61 : x
  2. Step 2: Convert to fraction form
    265,893.75/366,934.50 = 145,037.61/x
  3. Step 3: Cross multiply
    265,893.75x = 366,934.50 × 145,037.61
  4. Step 4: Simplify right side
    265,893.75x = 53,219,302,906.55
  5. Step 5: Solve for x
    x = 53,219,302,906.55/265,893.75
  6. Step 6: Final answer
    x = 200,152.52

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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.