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Finding the Fourth Proportional to 219,468.60, 329,202.90 and 148,609.80

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Solution

The fourth proportional to 219,468.60, 329,202.90 and 148,609.80 is: 222,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,468.60 : 329,202.90 = 148,609.80 : x
  2. Step 2: Convert to fraction form
    219,468.60/329,202.90 = 148,609.80/x
  3. Step 3: Cross multiply
    219,468.60x = 329,202.90 × 148,609.80
  4. Step 4: Simplify right side
    219,468.60x = 48,922,777,128.42
  5. Step 5: Solve for x
    x = 48,922,777,128.42/219,468.60
  6. Step 6: Final answer
    x = 222,914.70

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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.