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Finding the Fourth Proportional to 277,045.46, 415,591.76 and 87,455.10

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Solution

The fourth proportional to 277,045.46, 415,591.76 and 87,455.10 is: 131,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,045.46 : 415,591.76 = 87,455.10 : x
  2. Step 2: Convert to fraction form
    277,045.46/415,591.76 = 87,455.10/x
  3. Step 3: Cross multiply
    277,045.46x = 415,591.76 × 87,455.10
  4. Step 4: Simplify right side
    277,045.46x = 36,345,618,492.70
  5. Step 5: Solve for x
    x = 36,345,618,492.70/277,045.46
  6. Step 6: Final answer
    x = 131,190.09

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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.