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Finding the Fourth Proportional to 109,668.31, 151,342.08 and 59,367.31

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Solution

The fourth proportional to 109,668.31, 151,342.08 and 59,367.31 is: 81,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,668.31 : 151,342.08 = 59,367.31 : x
  2. Step 2: Convert to fraction form
    109,668.31/151,342.08 = 59,367.31/x
  3. Step 3: Cross multiply
    109,668.31x = 151,342.08 × 59,367.31
  4. Step 4: Simplify right side
    109,668.31x = 8,984,772,179.40
  5. Step 5: Solve for x
    x = 8,984,772,179.40/109,668.31
  6. Step 6: Final answer
    x = 81,926.79

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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.