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Finding the Fourth Proportional to 77,656.66, 116,485.15 and 21,496.93

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Solution

The fourth proportional to 77,656.66, 116,485.15 and 21,496.93 is: 32,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,656.66 : 116,485.15 = 21,496.93 : x
  2. Step 2: Convert to fraction form
    77,656.66/116,485.15 = 21,496.93/x
  3. Step 3: Cross multiply
    77,656.66x = 116,485.15 × 21,496.93
  4. Step 4: Simplify right side
    77,656.66x = 2,504,073,115.59
  5. Step 5: Solve for x
    x = 2,504,073,115.59/77,656.66
  6. Step 6: Final answer
    x = 32,245.44

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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.