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Finding the Fourth Proportional to 65,230.92, 89,879.76 and 43,973.28

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Solution

The fourth proportional to 65,230.92, 89,879.76 and 43,973.28 is: 60,589.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,230.92 : 89,879.76 = 43,973.28 : x
  2. Step 2: Convert to fraction form
    65,230.92/89,879.76 = 43,973.28/x
  3. Step 3: Cross multiply
    65,230.92x = 89,879.76 × 43,973.28
  4. Step 4: Simplify right side
    65,230.92x = 3,952,307,852.81
  5. Step 5: Solve for x
    x = 3,952,307,852.81/65,230.92
  6. Step 6: Final answer
    x = 60,589.49

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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.