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Finding the Fourth Proportional to 291,766.86, 437,544.99 and 123,300.20

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Solution

The fourth proportional to 291,766.86, 437,544.99 and 123,300.20 is: 184,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,766.86 : 437,544.99 = 123,300.20 : x
  2. Step 2: Convert to fraction form
    291,766.86/437,544.99 = 123,300.20/x
  3. Step 3: Cross multiply
    291,766.86x = 437,544.99 × 123,300.20
  4. Step 4: Simplify right side
    291,766.86x = 53,949,384,776.00
  5. Step 5: Solve for x
    x = 53,949,384,776.00/291,766.86
  6. Step 6: Final answer
    x = 184,905.80

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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.