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Finding the Fourth Proportional to 79,392.16, 109,560.48 and 43,581.36

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Solution

The fourth proportional to 79,392.16, 109,560.48 and 43,581.36 is: 60,141.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,392.16 : 109,560.48 = 43,581.36 : x
  2. Step 2: Convert to fraction form
    79,392.16/109,560.48 = 43,581.36/x
  3. Step 3: Cross multiply
    79,392.16x = 109,560.48 × 43,581.36
  4. Step 4: Simplify right side
    79,392.16x = 4,774,794,720.65
  5. Step 5: Solve for x
    x = 4,774,794,720.65/79,392.16
  6. Step 6: Final answer
    x = 60,141.89

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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.