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Finding the Fourth Proportional to 64,145.40, 96,203.52 and 30,844.68

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Solution

The fourth proportional to 64,145.40, 96,203.52 and 30,844.68 is: 46,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,145.40 : 96,203.52 = 30,844.68 : x
  2. Step 2: Convert to fraction form
    64,145.40/96,203.52 = 30,844.68/x
  3. Step 3: Cross multiply
    64,145.40x = 96,203.52 × 30,844.68
  4. Step 4: Simplify right side
    64,145.40x = 2,967,366,789.27
  5. Step 5: Solve for x
    x = 2,967,366,789.27/64,145.40
  6. Step 6: Final answer
    x = 46,260.01

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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.