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Finding the Fourth Proportional to 73,412.20, 110,147.10 and 29,031.40

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Solution

The fourth proportional to 73,412.20, 110,147.10 and 29,031.40 is: 43,558.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,412.20 : 110,147.10 = 29,031.40 : x
  2. Step 2: Convert to fraction form
    73,412.20/110,147.10 = 29,031.40/x
  3. Step 3: Cross multiply
    73,412.20x = 110,147.10 × 29,031.40
  4. Step 4: Simplify right side
    73,412.20x = 3,197,724,518.94
  5. Step 5: Solve for x
    x = 3,197,724,518.94/73,412.20
  6. Step 6: Final answer
    x = 43,558.49

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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.