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Finding the Fourth Proportional to 146,607.20, 219,619.20 and 136,109.60

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Solution

The fourth proportional to 146,607.20, 219,619.20 and 136,109.60 is: 203,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,607.20 : 219,619.20 = 136,109.60 : x
  2. Step 2: Convert to fraction form
    146,607.20/219,619.20 = 136,109.60/x
  3. Step 3: Cross multiply
    146,607.20x = 219,619.20 × 136,109.60
  4. Step 4: Simplify right side
    146,607.20x = 29,892,281,464.32
  5. Step 5: Solve for x
    x = 29,892,281,464.32/146,607.20
  6. Step 6: Final answer
    x = 203,893.68

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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.