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Finding the Fourth Proportional to 64,760.36, 97,101.66 and 43,920.68

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Solution

The fourth proportional to 64,760.36, 97,101.66 and 43,920.68 is: 65,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,760.36 : 97,101.66 = 43,920.68 : x
  2. Step 2: Convert to fraction form
    64,760.36/97,101.66 = 43,920.68/x
  3. Step 3: Cross multiply
    64,760.36x = 97,101.66 × 43,920.68
  4. Step 4: Simplify right side
    64,760.36x = 4,264,770,936.33
  5. Step 5: Solve for x
    x = 4,264,770,936.33/64,760.36
  6. Step 6: Final answer
    x = 65,854.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.