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Finding the Fourth Proportional to 133,107.72, 199,671.16 and 41,915.30

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Solution

The fourth proportional to 133,107.72, 199,671.16 and 41,915.30 is: 62,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,107.72 : 199,671.16 = 41,915.30 : x
  2. Step 2: Convert to fraction form
    133,107.72/199,671.16 = 41,915.30/x
  3. Step 3: Cross multiply
    133,107.72x = 199,671.16 × 41,915.30
  4. Step 4: Simplify right side
    133,107.72x = 8,369,276,572.75
  5. Step 5: Solve for x
    x = 8,369,276,572.75/133,107.72
  6. Step 6: Final answer
    x = 62,875.97

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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.