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Finding the Fourth Proportional to 98,950.88, 148,180.12 and 69,229.56

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Solution

The fourth proportional to 98,950.88, 148,180.12 and 69,229.56 is: 103,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,950.88 : 148,180.12 = 69,229.56 : x
  2. Step 2: Convert to fraction form
    98,950.88/148,180.12 = 69,229.56/x
  3. Step 3: Cross multiply
    98,950.88x = 148,180.12 × 69,229.56
  4. Step 4: Simplify right side
    98,950.88x = 10,258,444,508.35
  5. Step 5: Solve for x
    x = 10,258,444,508.35/98,950.88
  6. Step 6: Final answer
    x = 103,672.09

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1.5x scale

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.