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Finding the Fourth Proportional to 108,544.41, 162,536.20 and 74,914.20

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Solution

The fourth proportional to 108,544.41, 162,536.20 and 74,914.20 is: 112,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,544.41 : 162,536.20 = 74,914.20 : x
  2. Step 2: Convert to fraction form
    108,544.41/162,536.20 = 74,914.20/x
  3. Step 3: Cross multiply
    108,544.41x = 162,536.20 × 74,914.20
  4. Step 4: Simplify right side
    108,544.41x = 12,176,269,394.04
  5. Step 5: Solve for x
    x = 12,176,269,394.04/108,544.41
  6. Step 6: Final answer
    x = 112,177.77

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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.