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Finding the Fourth Proportional to 73,805.04, 110,639.34 and 29,421

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Solution

The fourth proportional to 73,805.04, 110,639.34 and 29,421 is: 44,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,805.04 : 110,639.34 = 29,421 : x
  2. Step 2: Convert to fraction form
    73,805.04/110,639.34 = 29,421/x
  3. Step 3: Cross multiply
    73,805.04x = 110,639.34 × 29,421
  4. Step 4: Simplify right side
    73,805.04x = 3,255,120,022.14
  5. Step 5: Solve for x
    x = 3,255,120,022.14/73,805.04
  6. Step 6: Final answer
    x = 44,104.31

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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.