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Finding the Fourth Proportional to 99,363.06, 149,044.43 and 25,491.06

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Solution

The fourth proportional to 99,363.06, 149,044.43 and 25,491.06 is: 38,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,363.06 : 149,044.43 = 25,491.06 : x
  2. Step 2: Convert to fraction form
    99,363.06/149,044.43 = 25,491.06/x
  3. Step 3: Cross multiply
    99,363.06x = 149,044.43 × 25,491.06
  4. Step 4: Simplify right side
    99,363.06x = 3,799,300,507.80
  5. Step 5: Solve for x
    x = 3,799,300,507.80/99,363.06
  6. Step 6: Final answer
    x = 38,236.55

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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.