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Finding the Fourth Proportional to 91,239.84, 136,863.60 and 44,532

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Solution

The fourth proportional to 91,239.84, 136,863.60 and 44,532 is: 66,799.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,239.84 : 136,863.60 = 44,532 : x
  2. Step 2: Convert to fraction form
    91,239.84/136,863.60 = 44,532/x
  3. Step 3: Cross multiply
    91,239.84x = 136,863.60 × 44,532
  4. Step 4: Simplify right side
    91,239.84x = 6,094,809,835.20
  5. Step 5: Solve for x
    x = 6,094,809,835.20/91,239.84
  6. Step 6: Final answer
    x = 66,799.87

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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.