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Finding the Fourth Proportional to 77,858.38, 116,728.70 and 32,893.66

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Solution

The fourth proportional to 77,858.38, 116,728.70 and 32,893.66 is: 49,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,858.38 : 116,728.70 = 32,893.66 : x
  2. Step 2: Convert to fraction form
    77,858.38/116,728.70 = 32,893.66/x
  3. Step 3: Cross multiply
    77,858.38x = 116,728.70 × 32,893.66
  4. Step 4: Simplify right side
    77,858.38x = 3,839,634,170.04
  5. Step 5: Solve for x
    x = 3,839,634,170.04/77,858.38
  6. Step 6: Final answer
    x = 49,315.62

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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.