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Finding the Fourth Proportional to 146,575.80, 219,863.70 and 127,330.20

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Solution

The fourth proportional to 146,575.80, 219,863.70 and 127,330.20 is: 190,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,575.80 : 219,863.70 = 127,330.20 : x
  2. Step 2: Convert to fraction form
    146,575.80/219,863.70 = 127,330.20/x
  3. Step 3: Cross multiply
    146,575.80x = 219,863.70 × 127,330.20
  4. Step 4: Simplify right side
    146,575.80x = 27,995,288,893.74
  5. Step 5: Solve for x
    x = 27,995,288,893.74/146,575.80
  6. Step 6: Final answer
    x = 190,995.30

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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.