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Finding the Fourth Proportional to 77,292.72, 106,663.80 and 43,761.84

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Solution

The fourth proportional to 77,292.72, 106,663.80 and 43,761.84 is: 60,391.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,292.72 : 106,663.80 = 43,761.84 : x
  2. Step 2: Convert to fraction form
    77,292.72/106,663.80 = 43,761.84/x
  3. Step 3: Cross multiply
    77,292.72x = 106,663.80 × 43,761.84
  4. Step 4: Simplify right side
    77,292.72x = 4,667,804,149.39
  5. Step 5: Solve for x
    x = 4,667,804,149.39/77,292.72
  6. Step 6: Final answer
    x = 60,391.25

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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.