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Finding the Fourth Proportional to 89,891.91, 124,575.21 and 88,623.45

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Solution

The fourth proportional to 89,891.91, 124,575.21 and 88,623.45 is: 122,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,891.91 : 124,575.21 = 88,623.45 : x
  2. Step 2: Convert to fraction form
    89,891.91/124,575.21 = 88,623.45/x
  3. Step 3: Cross multiply
    89,891.91x = 124,575.21 × 88,623.45
  4. Step 4: Simplify right side
    89,891.91x = 11,040,284,894.67
  5. Step 5: Solve for x
    x = 11,040,284,894.67/89,891.91
  6. Step 6: Final answer
    x = 122,817.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.