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Finding the Fourth Proportional to 291,037.94, 436,838.46 and 210,068.44

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Solution

The fourth proportional to 291,037.94, 436,838.46 and 210,068.44 is: 315,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,037.94 : 436,838.46 = 210,068.44 : x
  2. Step 2: Convert to fraction form
    291,037.94/436,838.46 = 210,068.44/x
  3. Step 3: Cross multiply
    291,037.94x = 436,838.46 × 210,068.44
  4. Step 4: Simplify right side
    291,037.94x = 91,765,974,370.25
  5. Step 5: Solve for x
    x = 91,765,974,370.25/291,037.94
  6. Step 6: Final answer
    x = 315,305.88

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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.