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Finding the Fourth Proportional to 279,816.54, 419,848.48 and 146,664.96

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Solution

The fourth proportional to 279,816.54, 419,848.48 and 146,664.96 is: 220,062.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,816.54 : 419,848.48 = 146,664.96 : x
  2. Step 2: Convert to fraction form
    279,816.54/419,848.48 = 146,664.96/x
  3. Step 3: Cross multiply
    279,816.54x = 419,848.48 × 146,664.96
  4. Step 4: Simplify right side
    279,816.54x = 61,577,060,525.26
  5. Step 5: Solve for x
    x = 61,577,060,525.26/279,816.54
  6. Step 6: Final answer
    x = 220,062.26

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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.