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Finding the Fourth Proportional to 73,473.12, 110,147.40 and 29,131.20

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Solution

The fourth proportional to 73,473.12, 110,147.40 and 29,131.20 is: 43,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,473.12 : 110,147.40 = 29,131.20 : x
  2. Step 2: Convert to fraction form
    73,473.12/110,147.40 = 29,131.20/x
  3. Step 3: Cross multiply
    73,473.12x = 110,147.40 × 29,131.20
  4. Step 4: Simplify right side
    73,473.12x = 3,208,725,938.88
  5. Step 5: Solve for x
    x = 3,208,725,938.88/73,473.12
  6. Step 6: Final answer
    x = 43,672.11

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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.