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Finding the Fourth Proportional to 127,589.94, 191,400.57 and 43,363.98

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Solution

The fourth proportional to 127,589.94, 191,400.57 and 43,363.98 is: 65,051.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,589.94 : 191,400.57 = 43,363.98 : x
  2. Step 2: Convert to fraction form
    127,589.94/191,400.57 = 43,363.98/x
  3. Step 3: Cross multiply
    127,589.94x = 191,400.57 × 43,363.98
  4. Step 4: Simplify right side
    127,589.94x = 8,299,890,489.47
  5. Step 5: Solve for x
    x = 8,299,890,489.47/127,589.94
  6. Step 6: Final answer
    x = 65,051.29

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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.