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Finding the Fourth Proportional to 146,481.60, 219,722.40 and 120,237.60

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Solution

The fourth proportional to 146,481.60, 219,722.40 and 120,237.60 is: 180,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,481.60 : 219,722.40 = 120,237.60 : x
  2. Step 2: Convert to fraction form
    146,481.60/219,722.40 = 120,237.60/x
  3. Step 3: Cross multiply
    146,481.60x = 219,722.40 × 120,237.60
  4. Step 4: Simplify right side
    146,481.60x = 26,418,894,042.24
  5. Step 5: Solve for x
    x = 26,418,894,042.24/146,481.60
  6. Step 6: Final answer
    x = 180,356.40

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1.5x scale

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.