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Finding the Fourth Proportional to 291,285.90, 437,098.65 and 122,795.90

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Solution

The fourth proportional to 291,285.90, 437,098.65 and 122,795.90 is: 184,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,285.90 : 437,098.65 = 122,795.90 : x
  2. Step 2: Convert to fraction form
    291,285.90/437,098.65 = 122,795.90/x
  3. Step 3: Cross multiply
    291,285.90x = 437,098.65 × 122,795.90
  4. Step 4: Simplify right side
    291,285.90x = 53,673,922,115.54
  5. Step 5: Solve for x
    x = 53,673,922,115.54/291,285.90
  6. Step 6: Final answer
    x = 184,265.43

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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.