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Finding the Fourth Proportional to 291,195.92, 436,533.92 and 113,661.52

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Solution

The fourth proportional to 291,195.92, 436,533.92 and 113,661.52 is: 170,390.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,195.92 : 436,533.92 = 113,661.52 : x
  2. Step 2: Convert to fraction form
    291,195.92/436,533.92 = 113,661.52/x
  3. Step 3: Cross multiply
    291,195.92x = 436,533.92 × 113,661.52
  4. Step 4: Simplify right side
    291,195.92x = 49,617,108,878.76
  5. Step 5: Solve for x
    x = 49,617,108,878.76/291,195.92
  6. Step 6: Final answer
    x = 170,390.81

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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.