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Finding the Fourth Proportional to 277,111.41, 415,664.61 and 87,571.81

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Solution

The fourth proportional to 277,111.41, 415,664.61 and 87,571.81 is: 131,356.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,111.41 : 415,664.61 = 87,571.81 : x
  2. Step 2: Convert to fraction form
    277,111.41/415,664.61 = 87,571.81/x
  3. Step 3: Cross multiply
    277,111.41x = 415,664.61 × 87,571.81
  4. Step 4: Simplify right side
    277,111.41x = 36,400,502,250.64
  5. Step 5: Solve for x
    x = 36,400,502,250.64/277,111.41
  6. Step 6: Final answer
    x = 131,356.92

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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.