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Finding the Fourth Proportional to 127,777.46, 191,675.46 and 51,839.54

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Solution

The fourth proportional to 127,777.46, 191,675.46 and 51,839.54 is: 77,763.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,777.46 : 191,675.46 = 51,839.54 : x
  2. Step 2: Convert to fraction form
    127,777.46/191,675.46 = 51,839.54/x
  3. Step 3: Cross multiply
    127,777.46x = 191,675.46 × 51,839.54
  4. Step 4: Simplify right side
    127,777.46x = 9,936,367,675.69
  5. Step 5: Solve for x
    x = 9,936,367,675.69/127,777.46
  6. Step 6: Final answer
    x = 77,763.07

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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.