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Finding the Fourth Proportional to 241,709.78, 362,564.80 and 91,915.50

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Solution

The fourth proportional to 241,709.78, 362,564.80 and 91,915.50 is: 137,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,709.78 : 362,564.80 = 91,915.50 : x
  2. Step 2: Convert to fraction form
    241,709.78/362,564.80 = 91,915.50/x
  3. Step 3: Cross multiply
    241,709.78x = 362,564.80 × 91,915.50
  4. Step 4: Simplify right side
    241,709.78x = 33,325,324,874.40
  5. Step 5: Solve for x
    x = 33,325,324,874.40/241,709.78
  6. Step 6: Final answer
    x = 137,873.30

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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.