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Finding the Fourth Proportional to 219,874.20, 329,811.30 and 95,458.20

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Solution

The fourth proportional to 219,874.20, 329,811.30 and 95,458.20 is: 143,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,874.20 : 329,811.30 = 95,458.20 : x
  2. Step 2: Convert to fraction form
    219,874.20/329,811.30 = 95,458.20/x
  3. Step 3: Cross multiply
    219,874.20x = 329,811.30 × 95,458.20
  4. Step 4: Simplify right side
    219,874.20x = 31,483,193,037.66
  5. Step 5: Solve for x
    x = 31,483,193,037.66/219,874.20
  6. Step 6: Final answer
    x = 143,187.30

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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.