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Finding the Fourth Proportional to 103,955.52, 155,909.43 and 29,080.97

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Solution

The fourth proportional to 103,955.52, 155,909.43 and 29,080.97 is: 43,614.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,955.52 : 155,909.43 = 29,080.97 : x
  2. Step 2: Convert to fraction form
    103,955.52/155,909.43 = 29,080.97/x
  3. Step 3: Cross multiply
    103,955.52x = 155,909.43 × 29,080.97
  4. Step 4: Simplify right side
    103,955.52x = 4,533,996,677.00
  5. Step 5: Solve for x
    x = 4,533,996,677.00/103,955.52
  6. Step 6: Final answer
    x = 43,614.78

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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.