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Finding the Fourth Proportional to 297,996.67, 411,240.55 and 162,031.54

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Solution

The fourth proportional to 297,996.67, 411,240.55 and 162,031.54 is: 223,606.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,996.67 : 411,240.55 = 162,031.54 : x
  2. Step 2: Convert to fraction form
    297,996.67/411,240.55 = 162,031.54/x
  3. Step 3: Cross multiply
    297,996.67x = 411,240.55 × 162,031.54
  4. Step 4: Simplify right side
    297,996.67x = 66,633,937,656.32
  5. Step 5: Solve for x
    x = 66,633,937,656.32/297,996.67
  6. Step 6: Final answer
    x = 223,606.32

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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.