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Finding the Fourth Proportional to 455,337.78, 683,015.94 and 156,162.26

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Solution

The fourth proportional to 455,337.78, 683,015.94 and 156,162.26 is: 234,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,337.78 : 683,015.94 = 156,162.26 : x
  2. Step 2: Convert to fraction form
    455,337.78/683,015.94 = 156,162.26/x
  3. Step 3: Cross multiply
    455,337.78x = 683,015.94 × 156,162.26
  4. Step 4: Simplify right side
    455,337.78x = 106,661,309,391.35
  5. Step 5: Solve for x
    x = 106,661,309,391.35/455,337.78
  6. Step 6: Final answer
    x = 234,246.56

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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.