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Finding the Fourth Proportional to 56,804.97, 78,391.17 and 32,945.79

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Solution

The fourth proportional to 56,804.97, 78,391.17 and 32,945.79 is: 45,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,804.97 : 78,391.17 = 32,945.79 : x
  2. Step 2: Convert to fraction form
    56,804.97/78,391.17 = 32,945.79/x
  3. Step 3: Cross multiply
    56,804.97x = 78,391.17 × 32,945.79
  4. Step 4: Simplify right side
    56,804.97x = 2,582,659,024.67
  5. Step 5: Solve for x
    x = 2,582,659,024.67/56,804.97
  6. Step 6: Final answer
    x = 45,465.37

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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.