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Finding the Fourth Proportional to 79,235.88, 109,346.37 and 43,425.12

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Solution

The fourth proportional to 79,235.88, 109,346.37 and 43,425.12 is: 59,927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,235.88 : 109,346.37 = 43,425.12 : x
  2. Step 2: Convert to fraction form
    79,235.88/109,346.37 = 43,425.12/x
  3. Step 3: Cross multiply
    79,235.88x = 109,346.37 × 43,425.12
  4. Step 4: Simplify right side
    79,235.88x = 4,748,379,238.81
  5. Step 5: Solve for x
    x = 4,748,379,238.81/79,235.88
  6. Step 6: Final answer
    x = 59,927.13

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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.