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Finding the Fourth Proportional to 317,687.02, 476,390.59 and 149,255.22

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Solution

The fourth proportional to 317,687.02, 476,390.59 and 149,255.22 is: 223,817.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,687.02 : 476,390.59 = 149,255.22 : x
  2. Step 2: Convert to fraction form
    317,687.02/476,390.59 = 149,255.22/x
  3. Step 3: Cross multiply
    317,687.02x = 476,390.59 × 149,255.22
  4. Step 4: Simplify right side
    317,687.02x = 71,103,782,316.38
  5. Step 5: Solve for x
    x = 71,103,782,316.38/317,687.02
  6. Step 6: Final answer
    x = 223,817.08

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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.