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Finding the Fourth Proportional to 267,315.09, 400,721.48 and 89,697.54

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Solution

The fourth proportional to 267,315.09, 400,721.48 and 89,697.54 is: 134,462.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,315.09 : 400,721.48 = 89,697.54 : x
  2. Step 2: Convert to fraction form
    267,315.09/400,721.48 = 89,697.54/x
  3. Step 3: Cross multiply
    267,315.09x = 400,721.48 × 89,697.54
  4. Step 4: Simplify right side
    267,315.09x = 35,943,730,532.67
  5. Step 5: Solve for x
    x = 35,943,730,532.67/267,315.09
  6. Step 6: Final answer
    x = 134,462.03

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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.