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Finding the Fourth Proportional to 441,165.61, 661,748.54 and 108,741.61

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Solution

The fourth proportional to 441,165.61, 661,748.54 and 108,741.61 is: 163,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,165.61 : 661,748.54 = 108,741.61 : x
  2. Step 2: Convert to fraction form
    441,165.61/661,748.54 = 108,741.61/x
  3. Step 3: Cross multiply
    441,165.61x = 661,748.54 × 108,741.61
  4. Step 4: Simplify right side
    441,165.61x = 71,959,601,654.75
  5. Step 5: Solve for x
    x = 71,959,601,654.75/441,165.61
  6. Step 6: Final answer
    x = 163,112.45

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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.