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Finding the Fourth Proportional to 127,825.48, 191,747.94 and 43,559.56

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Solution

The fourth proportional to 127,825.48, 191,747.94 and 43,559.56 is: 65,342.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,825.48 : 191,747.94 = 43,559.56 : x
  2. Step 2: Convert to fraction form
    127,825.48/191,747.94 = 43,559.56/x
  3. Step 3: Cross multiply
    127,825.48x = 191,747.94 × 43,559.56
  4. Step 4: Simplify right side
    127,825.48x = 8,352,455,897.31
  5. Step 5: Solve for x
    x = 8,352,455,897.31/127,825.48
  6. Step 6: Final answer
    x = 65,342.65

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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.