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Finding the Fourth Proportional to 96,313.40, 132,911.73 and 53,871.90

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Solution

The fourth proportional to 96,313.40, 132,911.73 and 53,871.90 is: 74,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,313.40 : 132,911.73 = 53,871.90 : x
  2. Step 2: Convert to fraction form
    96,313.40/132,911.73 = 53,871.90/x
  3. Step 3: Cross multiply
    96,313.40x = 132,911.73 × 53,871.90
  4. Step 4: Simplify right side
    96,313.40x = 7,160,207,427.39
  5. Step 5: Solve for x
    x = 7,160,207,427.39/96,313.40
  6. Step 6: Final answer
    x = 74,342.80

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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.