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Finding the Fourth Proportional to 146,989.63, 220,487.01 and 41,811.40

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Solution

The fourth proportional to 146,989.63, 220,487.01 and 41,811.40 is: 62,717.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,989.63 : 220,487.01 = 41,811.40 : x
  2. Step 2: Convert to fraction form
    146,989.63/220,487.01 = 41,811.40/x
  3. Step 3: Cross multiply
    146,989.63x = 220,487.01 × 41,811.40
  4. Step 4: Simplify right side
    146,989.63x = 9,218,870,569.91
  5. Step 5: Solve for x
    x = 9,218,870,569.91/146,989.63
  6. Step 6: Final answer
    x = 62,717.83

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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.