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Finding the Fourth Proportional to 291,495.71, 436,255.94 and 179,247.02

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Solution

The fourth proportional to 291,495.71, 436,255.94 and 179,247.02 is: 268,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,495.71 : 436,255.94 = 179,247.02 : x
  2. Step 2: Convert to fraction form
    291,495.71/436,255.94 = 179,247.02/x
  3. Step 3: Cross multiply
    291,495.71x = 436,255.94 × 179,247.02
  4. Step 4: Simplify right side
    291,495.71x = 78,197,575,469.14
  5. Step 5: Solve for x
    x = 78,197,575,469.14/291,495.71
  6. Step 6: Final answer
    x = 268,263.21

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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.