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Finding the Fourth Proportional to 79,507.58, 109,715.82 and 43,697.62

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Solution

The fourth proportional to 79,507.58, 109,715.82 and 43,697.62 is: 60,300.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,507.58 : 109,715.82 = 43,697.62 : x
  2. Step 2: Convert to fraction form
    79,507.58/109,715.82 = 43,697.62/x
  3. Step 3: Cross multiply
    79,507.58x = 109,715.82 × 43,697.62
  4. Step 4: Simplify right side
    79,507.58x = 4,794,319,936.06
  5. Step 5: Solve for x
    x = 4,794,319,936.06/79,507.58
  6. Step 6: Final answer
    x = 60,300.16

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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.