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Finding the Fourth Proportional to 219,351.60, 329,027.40 and 148,492.80

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Solution

The fourth proportional to 219,351.60, 329,027.40 and 148,492.80 is: 222,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,351.60 : 329,027.40 = 148,492.80 : x
  2. Step 2: Convert to fraction form
    219,351.60/329,027.40 = 148,492.80/x
  3. Step 3: Cross multiply
    219,351.60x = 329,027.40 × 148,492.80
  4. Step 4: Simplify right side
    219,351.60x = 48,858,199,902.72
  5. Step 5: Solve for x
    x = 48,858,199,902.72/219,351.60
  6. Step 6: Final answer
    x = 222,739.20

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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.