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Finding the Fourth Proportional to 83,668.71, 125,189.37 and 49,810.88

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Solution

The fourth proportional to 83,668.71, 125,189.37 and 49,810.88 is: 74,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,668.71 : 125,189.37 = 49,810.88 : x
  2. Step 2: Convert to fraction form
    83,668.71/125,189.37 = 49,810.88/x
  3. Step 3: Cross multiply
    83,668.71x = 125,189.37 × 49,810.88
  4. Step 4: Simplify right side
    83,668.71x = 6,235,792,999.32
  5. Step 5: Solve for x
    x = 6,235,792,999.32/83,668.71
  6. Step 6: Final answer
    x = 74,529.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.