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Finding the Fourth Proportional to 127,095.75, 190,672.92 and 43,989.75

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Solution

The fourth proportional to 127,095.75, 190,672.92 and 43,989.75 is: 65,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,095.75 : 190,672.92 = 43,989.75 : x
  2. Step 2: Convert to fraction form
    127,095.75/190,672.92 = 43,989.75/x
  3. Step 3: Cross multiply
    127,095.75x = 190,672.92 × 43,989.75
  4. Step 4: Simplify right side
    127,095.75x = 8,387,654,082.57
  5. Step 5: Solve for x
    x = 8,387,654,082.57/127,095.75
  6. Step 6: Final answer
    x = 65,994.76

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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.