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Finding the Fourth Proportional to 277,187.64, 415,777.81 and 66,823.89

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Solution

The fourth proportional to 277,187.64, 415,777.81 and 66,823.89 is: 100,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,187.64 : 415,777.81 = 66,823.89 : x
  2. Step 2: Convert to fraction form
    277,187.64/415,777.81 = 66,823.89/x
  3. Step 3: Cross multiply
    277,187.64x = 415,777.81 × 66,823.89
  4. Step 4: Simplify right side
    277,187.64x = 27,783,888,226.87
  5. Step 5: Solve for x
    x = 27,783,888,226.87/277,187.64
  6. Step 6: Final answer
    x = 100,234.95

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1.5x scale

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.