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Finding the Fourth Proportional to 104,796.72, 144,622.32 and 57,053.28

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Solution

The fourth proportional to 104,796.72, 144,622.32 and 57,053.28 is: 78,735.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,796.72 : 144,622.32 = 57,053.28 : x
  2. Step 2: Convert to fraction form
    104,796.72/144,622.32 = 57,053.28/x
  3. Step 3: Cross multiply
    104,796.72x = 144,622.32 × 57,053.28
  4. Step 4: Simplify right side
    104,796.72x = 8,251,177,717.21
  5. Step 5: Solve for x
    x = 8,251,177,717.21/104,796.72
  6. Step 6: Final answer
    x = 78,735.08

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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.