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Finding the Fourth Proportional to 108,503.11, 162,754.66 and 29,619.44

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Solution

The fourth proportional to 108,503.11, 162,754.66 and 29,619.44 is: 44,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.11 : 162,754.66 = 29,619.44 : x
  2. Step 2: Convert to fraction form
    108,503.11/162,754.66 = 29,619.44/x
  3. Step 3: Cross multiply
    108,503.11x = 162,754.66 × 29,619.44
  4. Step 4: Simplify right side
    108,503.11x = 4,820,701,072.82
  5. Step 5: Solve for x
    x = 4,820,701,072.82/108,503.11
  6. Step 6: Final answer
    x = 44,429.15

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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.