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Finding the Fourth Proportional to 303,138.18, 455,024.25 and 125,750.52

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Solution

The fourth proportional to 303,138.18, 455,024.25 and 125,750.52 is: 188,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,138.18 : 455,024.25 = 125,750.52 : x
  2. Step 2: Convert to fraction form
    303,138.18/455,024.25 = 125,750.52/x
  3. Step 3: Cross multiply
    303,138.18x = 455,024.25 × 125,750.52
  4. Step 4: Simplify right side
    303,138.18x = 57,219,536,050.11
  5. Step 5: Solve for x
    x = 57,219,536,050.11/303,138.18
  6. Step 6: Final answer
    x = 188,757.27

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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.