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Finding the Fourth Proportional to 64,129.70, 96,243.15 and 41,935.70

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Solution

The fourth proportional to 64,129.70, 96,243.15 and 41,935.70 is: 62,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,129.70 : 96,243.15 = 41,935.70 : x
  2. Step 2: Convert to fraction form
    64,129.70/96,243.15 = 41,935.70/x
  3. Step 3: Cross multiply
    64,129.70x = 96,243.15 × 41,935.70
  4. Step 4: Simplify right side
    64,129.70x = 4,036,023,865.46
  5. Step 5: Solve for x
    x = 4,036,023,865.46/64,129.70
  6. Step 6: Final answer
    x = 62,935.33

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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.