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Finding the Fourth Proportional to 98,863.62, 136,431.11 and 53,540.57

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Solution

The fourth proportional to 98,863.62, 136,431.11 and 53,540.57 is: 73,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,863.62 : 136,431.11 = 53,540.57 : x
  2. Step 2: Convert to fraction form
    98,863.62/136,431.11 = 53,540.57/x
  3. Step 3: Cross multiply
    98,863.62x = 136,431.11 × 53,540.57
  4. Step 4: Simplify right side
    98,863.62x = 7,304,599,102.64
  5. Step 5: Solve for x
    x = 7,304,599,102.64/98,863.62
  6. Step 6: Final answer
    x = 73,885.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.