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Finding the Fourth Proportional to 56,591.26, 78,100.59 and 36,489.99

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Solution

The fourth proportional to 56,591.26, 78,100.59 and 36,489.99 is: 50,359.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,591.26 : 78,100.59 = 36,489.99 : x
  2. Step 2: Convert to fraction form
    56,591.26/78,100.59 = 36,489.99/x
  3. Step 3: Cross multiply
    56,591.26x = 78,100.59 × 36,489.99
  4. Step 4: Simplify right side
    56,591.26x = 2,849,889,357.59
  5. Step 5: Solve for x
    x = 2,849,889,357.59/56,591.26
  6. Step 6: Final answer
    x = 50,359.18

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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.