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Finding the Fourth Proportional to 96,749.60, 133,497.60 and 54,309.92

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Solution

The fourth proportional to 96,749.60, 133,497.60 and 54,309.92 is: 74,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,749.60 : 133,497.60 = 54,309.92 : x
  2. Step 2: Convert to fraction form
    96,749.60/133,497.60 = 54,309.92/x
  3. Step 3: Cross multiply
    96,749.60x = 133,497.60 × 54,309.92
  4. Step 4: Simplify right side
    96,749.60x = 7,250,243,976.19
  5. Step 5: Solve for x
    x = 7,250,243,976.19/96,749.60
  6. Step 6: Final answer
    x = 74,938.23

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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.