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Finding the Fourth Proportional to 109,668.81, 151,342.77 and 59,367.81

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Solution

The fourth proportional to 109,668.81, 151,342.77 and 59,367.81 is: 81,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,668.81 : 151,342.77 = 59,367.81 : x
  2. Step 2: Convert to fraction form
    109,668.81/151,342.77 = 59,367.81/x
  3. Step 3: Cross multiply
    109,668.81x = 151,342.77 × 59,367.81
  4. Step 4: Simplify right side
    109,668.81x = 8,984,888,814.23
  5. Step 5: Solve for x
    x = 8,984,888,814.23/109,668.81
  6. Step 6: Final answer
    x = 81,927.48

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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.