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Finding the Fourth Proportional to 127,958.30, 191,951.85 and 39,211.10

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Solution

The fourth proportional to 127,958.30, 191,951.85 and 39,211.10 is: 58,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,958.30 : 191,951.85 = 39,211.10 : x
  2. Step 2: Convert to fraction form
    127,958.30/191,951.85 = 39,211.10/x
  3. Step 3: Cross multiply
    127,958.30x = 191,951.85 × 39,211.10
  4. Step 4: Simplify right side
    127,958.30x = 7,526,643,185.54
  5. Step 5: Solve for x
    x = 7,526,643,185.54/127,958.30
  6. Step 6: Final answer
    x = 58,821.06

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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.