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Finding the Fourth Proportional to 77,496.46, 106,945.05 and 43,505.01

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Solution

The fourth proportional to 77,496.46, 106,945.05 and 43,505.01 is: 60,036.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,496.46 : 106,945.05 = 43,505.01 : x
  2. Step 2: Convert to fraction form
    77,496.46/106,945.05 = 43,505.01/x
  3. Step 3: Cross multiply
    77,496.46x = 106,945.05 × 43,505.01
  4. Step 4: Simplify right side
    77,496.46x = 4,652,645,469.70
  5. Step 5: Solve for x
    x = 4,652,645,469.70/77,496.46
  6. Step 6: Final answer
    x = 60,036.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.