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Finding the Fourth Proportional to 291,141.92, 436,782.94 and 122,710.41

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Solution

The fourth proportional to 291,141.92, 436,782.94 and 122,710.41 is: 184,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,141.92 : 436,782.94 = 122,710.41 : x
  2. Step 2: Convert to fraction form
    291,141.92/436,782.94 = 122,710.41/x
  3. Step 3: Cross multiply
    291,141.92x = 436,782.94 × 122,710.41
  4. Step 4: Simplify right side
    291,141.92x = 53,597,813,648.41
  5. Step 5: Solve for x
    x = 53,597,813,648.41/291,141.92
  6. Step 6: Final answer
    x = 184,095.15

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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.