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Finding the Fourth Proportional to 146,980.54, 220,470.34 and 40,364.60

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Solution

The fourth proportional to 146,980.54, 220,470.34 and 40,364.60 is: 60,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,980.54 : 220,470.34 = 40,364.60 : x
  2. Step 2: Convert to fraction form
    146,980.54/220,470.34 = 40,364.60/x
  3. Step 3: Cross multiply
    146,980.54x = 220,470.34 × 40,364.60
  4. Step 4: Simplify right side
    146,980.54x = 8,899,197,085.96
  5. Step 5: Solve for x
    x = 8,899,197,085.96/146,980.54
  6. Step 6: Final answer
    x = 60,546.77

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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.