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Finding the Fourth Proportional to 146,998.20, 220,497.30 and 64,054.20

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Solution

The fourth proportional to 146,998.20, 220,497.30 and 64,054.20 is: 96,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,998.20 : 220,497.30 = 64,054.20 : x
  2. Step 2: Convert to fraction form
    146,998.20/220,497.30 = 64,054.20/x
  3. Step 3: Cross multiply
    146,998.20x = 220,497.30 × 64,054.20
  4. Step 4: Simplify right side
    146,998.20x = 14,123,778,153.66
  5. Step 5: Solve for x
    x = 14,123,778,153.66/146,998.20
  6. Step 6: Final answer
    x = 96,081.30

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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.