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Finding the Fourth Proportional to 146,712.64, 202,464.48 and 79,644.64

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Solution

The fourth proportional to 146,712.64, 202,464.48 and 79,644.64 is: 109,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,712.64 : 202,464.48 = 79,644.64 : x
  2. Step 2: Convert to fraction form
    146,712.64/202,464.48 = 79,644.64/x
  3. Step 3: Cross multiply
    146,712.64x = 202,464.48 × 79,644.64
  4. Step 4: Simplify right side
    146,712.64x = 16,125,210,622.39
  5. Step 5: Solve for x
    x = 16,125,210,622.39/146,712.64
  6. Step 6: Final answer
    x = 109,910.17

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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.