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Finding the Fourth Proportional to 146,464.80, 219,697.20 and 127,219.20

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Solution

The fourth proportional to 146,464.80, 219,697.20 and 127,219.20 is: 190,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,464.80 : 219,697.20 = 127,219.20 : x
  2. Step 2: Convert to fraction form
    146,464.80/219,697.20 = 127,219.20/x
  3. Step 3: Cross multiply
    146,464.80x = 219,697.20 × 127,219.20
  4. Step 4: Simplify right side
    146,464.80x = 27,949,702,026.24
  5. Step 5: Solve for x
    x = 27,949,702,026.24/146,464.80
  6. Step 6: Final answer
    x = 190,828.80

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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.