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Finding the Fourth Proportional to 291,467.43, 436,393.85 and 149,006.03

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Solution

The fourth proportional to 291,467.43, 436,393.85 and 149,006.03 is: 223,096.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,467.43 : 436,393.85 = 149,006.03 : x
  2. Step 2: Convert to fraction form
    291,467.43/436,393.85 = 149,006.03/x
  3. Step 3: Cross multiply
    291,467.43x = 436,393.85 × 149,006.03
  4. Step 4: Simplify right side
    291,467.43x = 65,025,312,177.92
  5. Step 5: Solve for x
    x = 65,025,312,177.92/291,467.43
  6. Step 6: Final answer
    x = 223,096.32

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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.