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Finding the Fourth Proportional to 317,266.35, 437,676.66 and 189,917.34

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Solution

The fourth proportional to 317,266.35, 437,676.66 and 189,917.34 is: 261,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,266.35 : 437,676.66 = 189,917.34 : x
  2. Step 2: Convert to fraction form
    317,266.35/437,676.66 = 189,917.34/x
  3. Step 3: Cross multiply
    317,266.35x = 437,676.66 × 189,917.34
  4. Step 4: Simplify right side
    317,266.35x = 83,122,387,047.28
  5. Step 5: Solve for x
    x = 83,122,387,047.28/317,266.35
  6. Step 6: Final answer
    x = 261,995.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.