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Finding the Fourth Proportional to 146,796.90, 202,580.74 and 79,728.90

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Solution

The fourth proportional to 146,796.90, 202,580.74 and 79,728.90 is: 110,026.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,796.90 : 202,580.74 = 79,728.90 : x
  2. Step 2: Convert to fraction form
    146,796.90/202,580.74 = 79,728.90/x
  3. Step 3: Cross multiply
    146,796.90x = 202,580.74 × 79,728.90
  4. Step 4: Simplify right side
    146,796.90x = 16,151,539,561.39
  5. Step 5: Solve for x
    x = 16,151,539,561.39/146,796.90
  6. Step 6: Final answer
    x = 110,026.43

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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.