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Finding the Fourth Proportional to 264,881.10, 397,321.65 and 159,905.10

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Solution

The fourth proportional to 264,881.10, 397,321.65 and 159,905.10 is: 239,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,881.10 : 397,321.65 = 159,905.10 : x
  2. Step 2: Convert to fraction form
    264,881.10/397,321.65 = 159,905.10/x
  3. Step 3: Cross multiply
    264,881.10x = 397,321.65 × 159,905.10
  4. Step 4: Simplify right side
    264,881.10x = 63,533,758,175.42
  5. Step 5: Solve for x
    x = 63,533,758,175.42/264,881.10
  6. Step 6: Final answer
    x = 239,857.65

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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.